This work is concerned with the preparation of alumina porous ceramic, the effect of binder (corn starch) and sintered on the physical and mechanical properties of ceramic bodies were. In this work porous raw material ceramic have been produced by using natural additive (corn starch) with (0, 5, 10, 15) wt%. The mixture were dried at 80oC for 2 hours. These samples were sintered at 10000C. Many mechanical properties tests were used to determine the properties of prepared ceramic material which involves: the linear shrinkage, water absorption, apparent porosity, diametrical compression strength, scanning electron microscope (SEM) and x-ray diffraction (X-RD). The results show the interconnected pores between (10-25µm) without additive, (15-28µm) at 5wt%, (17-35µm) at 10wt% and (20-55µm) at 15wt%. The pore size are illustrated by small and large spherical shape the corn starch particle, which are connected and contain an interconnected pores throughout small pores channels.
{"title":"Studying the Properties of Porous Alumina Using Starch as a Binder","authors":"Hazim K. Alag, Rafid S Zamel","doi":"10.22401/JNUS.21.3.13","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.13","url":null,"abstract":"This work is concerned with the preparation of alumina porous ceramic, the effect of binder (corn starch) and sintered on the physical and mechanical properties of ceramic bodies were. In this work porous raw material ceramic have been produced by using natural additive (corn starch) with (0, 5, 10, 15) wt%. The mixture were dried at 80oC for 2 hours. These samples were sintered at 10000C. Many mechanical properties tests were used to determine the properties of prepared ceramic material which involves: the linear shrinkage, water absorption, apparent porosity, diametrical compression strength, scanning electron microscope (SEM) and x-ray diffraction (X-RD). The results show the interconnected pores between (10-25µm) without additive, (15-28µm) at 5wt%, (17-35µm) at 10wt% and (20-55µm) at 15wt%. The pore size are illustrated by small and large spherical shape the corn starch particle, which are connected and contain an interconnected pores throughout small pores channels.","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130104765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mannich bases derivatives of Benzimidazole were prepared from condensation reaction of 2-mercaptobenzimidazole with formaldeyhed once with mropholine and another with pyrazinamide to prepare L1 and L2 respectively, coordinated with three metal ions of Pd(II), Pt(IV) and Au(III). The structures of these compounds were confirmed by metal and elemental analyses, UV-Vis and FT-IR spectroscopy, magnetic susceptibility, conductivity measurement at room temperature, 1HNMR and 13CNMR. Experimental results showed that the ligands (L1&L2) coordinated as bi-dentate and tridentate with metal ions respectively. Cytotoxicity of Mannich bases and their metal complexes were examined against mice cell line RAW 264.7 using MTT method .Each cell line was injected by following doses (400,200,100 and 50) µg/ml of prepared compounds by using mice cell as a negative control and cis-platin as a positive control. The ligands and Pd(II), Pt(IV), Au(III) complexes showed good activity at various concentrations especially Pd(II) complexes of both complexes.
{"title":"Synthesis, Spectroscopic Characterization and in Vitro Cytotoxicity Assay of Mropholine Mannich Base Derivatives of Benzimidazole with Some Heavy Metals","authors":"M. Alias, S. Bakir","doi":"10.22401/JNUS.21.3.06","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.06","url":null,"abstract":"Mannich bases derivatives of Benzimidazole were prepared from condensation reaction of 2-mercaptobenzimidazole with formaldeyhed once with mropholine and another with pyrazinamide to prepare L1 and L2 respectively, coordinated with three metal ions of Pd(II), Pt(IV) and Au(III). The structures of these compounds were confirmed by metal and elemental analyses, UV-Vis and FT-IR spectroscopy, magnetic susceptibility, conductivity measurement at room temperature, 1HNMR and 13CNMR. Experimental results showed that the ligands (L1&L2) coordinated as bi-dentate and tridentate with metal ions respectively. Cytotoxicity of Mannich bases and their metal complexes were examined against mice cell line RAW 264.7 using MTT method .Each cell line was injected by following doses (400,200,100 and 50) µg/ml of prepared compounds by using mice cell as a negative control and cis-platin as a positive control. The ligands and Pd(II), Pt(IV), Au(III) complexes showed good activity at various concentrations especially Pd(II) complexes of both complexes.","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125613179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The corrosion inhibition characteristics of Carnosine (2-(3-aminopropanamido)-3-(1H-imidazol-5-yl) propanoic acid) in corrosive solution for mild steel have been investigated at 30oC through gravimetrical technique namely Weight loss method. The morphology study of mild steel with and without Carnosine to impedance the corrosion for mild steel in 1.0 M hydrochloric acid has been figured, utilizing with scanning electron microscopy (SEM). The results show that the investigated Carnosine might be an excellent corrosion inhibitor with enhanced inhibition efficiency of 91%. The inhibition effectiveness of the Carnosine raising with increase of Carnosine concentrations, and decreases with increasing of temperature corrosion solution.[DOI: 10.22401/JNUS.21.3.10]
{"title":"Analytical and Gravimetrical Studies of the Corrosion Inhibitory Behavior of Carnosine","authors":"Dhuha H. Fadhil","doi":"10.22401/JNUS.21.3.10","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.10","url":null,"abstract":"The corrosion inhibition characteristics of Carnosine (2-(3-aminopropanamido)-3-(1H-imidazol-5-yl) propanoic acid) in corrosive solution for mild steel have been investigated at 30oC through gravimetrical technique namely Weight loss method. The morphology study of mild steel with and without Carnosine to impedance the corrosion for mild steel in 1.0 M hydrochloric acid has been figured, utilizing with scanning electron microscopy (SEM). The results show that the investigated Carnosine might be an excellent corrosion inhibitor with enhanced inhibition efficiency of 91%. The inhibition effectiveness of the Carnosine raising with increase of Carnosine concentrations, and decreases with increasing of temperature corrosion solution.[DOI: 10.22401/JNUS.21.3.10]","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129805095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of this paper is building a mathematical model for Travelling salesman problem (TSP) with multi-objective; the model describes the problem of (TSP) with three objectives (cost, distance, time), Real data were collected with a sample of twenty states of United State of America, Three methods were used (Branch and Bound algorithm, Nearest neighbor and two-way exchange improvement heuristic), The comparison was conducted among results reached. To solve the problem multi-objective of (TSP), The weighted model demonstrated the effectiveness and flexibility to solve real problems of multi-objective (TSP), where it can be said that it is impossible to solve this problem without resorting to multiple -objective mathematical models, In other words, the number of possible rout for the 20 town is , to find the optimal routs among these routs it takes very long time and a lot of effort, here stand out importance of two-way exchange improvement heuristic algorithm, where this rout is satisfactory to the decision maker in terms of cost, distance and time.
{"title":"Solving the Multi-Objective Travelling Salesman Problem with Real Data Application","authors":"Barraq Subhi Kaml, M. Ibrahim","doi":"10.22401/JNUS.21.3.18","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.18","url":null,"abstract":"The aim of this paper is building a mathematical model for Travelling salesman problem (TSP) with multi-objective; the model describes the problem of (TSP) with three objectives (cost, distance, time), Real data were collected with a sample of twenty states of United State of America, Three methods were used (Branch and Bound algorithm, Nearest neighbor and two-way exchange improvement heuristic), The comparison was conducted among results reached. To solve the problem multi-objective of (TSP), The weighted model demonstrated the effectiveness and flexibility to solve real problems of multi-objective (TSP), where it can be said that it is impossible to solve this problem without resorting to multiple -objective mathematical models, In other words, the number of possible rout for the 20 town is , to find the optimal routs among these routs it takes very long time and a lot of effort, here stand out importance of two-way exchange improvement heuristic algorithm, where this rout is satisfactory to the decision maker in terms of cost, distance and time.","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132183538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Two new polymers were synthesized poly[5-amino-1,3,4-thiadiazol-2-yl (6-methanethioa- mido-6-oxohexanoyl)carbamodithioate] and Poly[N1-((6-aminopyridin-2-yl) carbamothioyl)-N6-thioformyladipamide]. These polymers were characterized by FTIR, 1H and 13C NMR spectra. These polymers were tested in removing some heavy metal ions (Cu(II), Cd(II), Zn(II), and Co(II)) from water. The adsorption behavior of these polymers has been studied using different parameters such as, contact time, initial metal ion concentration, weight of the polymer, pH of the solution and temperature. This study reveals that the two polymers have high adsorption capacity for mentioning metal ions. Langmuir, and Freundlich isotherm models were used to fit the experimental data. The experimental data of the adsorption equilibrium correlates well with the isotherm equations.
{"title":"Synthesis and Characterization of Polymers Bearing Thiourea Moiety and StudyTheir Efficiency in Removing Heavy Metal Ions from Aqueous Solutions","authors":"H. J. Jaffer, Hawraa Sarhan Reshan","doi":"10.22401/JNUS.21.3.05","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.05","url":null,"abstract":"Two new polymers were synthesized poly[5-amino-1,3,4-thiadiazol-2-yl (6-methanethioa- mido-6-oxohexanoyl)carbamodithioate] and Poly[N1-((6-aminopyridin-2-yl) carbamothioyl)-N6-thioformyladipamide]. These polymers were characterized by FTIR, 1H and 13C NMR spectra. These polymers were tested in removing some heavy metal ions (Cu(II), Cd(II), Zn(II), and Co(II)) from water. The adsorption behavior of these polymers has been studied using different parameters such as, contact time, initial metal ion concentration, weight of the polymer, pH of the solution and temperature. This study reveals that the two polymers have high adsorption capacity for mentioning metal ions. Langmuir, and Freundlich isotherm models were used to fit the experimental data. The experimental data of the adsorption equilibrium correlates well with the isotherm equations.","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133042455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Antagonistic activity of Myrtrus communis volatile oil was evaluated against fungi isolated and detected in different hoods in Biology Department in order to eliminate and purge the hoods of laboratories from contaminant fungi which are rendered scientific projects. Many fungi samples were detected in four laboratories which were Aspergillus fumigates, Asp.niger, Asp.flavus, Cryptococcus albidus, Fusarium solani, Asp.terrus, Asp.terriola, Penicillium notatum and Mucor sp. Only four pure isolates were gained due to difficulties in purification of the isolates included Fusarium solani, Asp.fumigatus, Asp.niger and Asp.Flavus. Volatile oil of Myrtrus communis showed the highest fungicidal effect causing 100 % inhibition against Asp.fumigates and the lowest was against Fusarium solani.
{"title":"Contaminated Fungi in the Biology Department laboratories and Antagonistic Potentiality of MyrtrusCommunisVolatile oil Against the Isolated Fungi","authors":"Ali Najem","doi":"10.22401/JNUS.21.3.15","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.15","url":null,"abstract":"Antagonistic activity of Myrtrus communis volatile oil was evaluated against fungi isolated and detected in different hoods in Biology Department in order to eliminate and purge the hoods of laboratories from contaminant fungi which are rendered scientific projects. Many fungi samples were detected in four laboratories which were Aspergillus fumigates, Asp.niger, Asp.flavus, Cryptococcus albidus, Fusarium solani, Asp.terrus, Asp.terriola, Penicillium notatum and Mucor sp. Only four pure isolates were gained due to difficulties in purification of the isolates included Fusarium solani, Asp.fumigatus, Asp.niger and Asp.Flavus. Volatile oil of Myrtrus communis showed the highest fungicidal effect causing 100 % inhibition against Asp.fumigates and the lowest was against Fusarium solani.","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116875355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this work, the effect adding of some vegetable oils to mineral oil on physical properties such as viscosity and pour point of mineral lubricating oil was studied. Some vegetable oils, like corn oil and castor oil were used. Engine lubricating oil (si-cf4 diesel oil) that produced in AL-Doura refinery was selected and used in this study. Viscosity and pour point measurements were tested by viscometer and pour point tester respectively. Deferent mixtures of castor oil and corn oil were prepared with mixing ratios ranging from (0-100)% at 80°C added to the Iraqi motor lubricating oil with a percentage ratio in the range of (0-6 ) % and the best results was obtained at percentage ratio of 6% and study the viscosity index and pour point of the resulting lubricant oil. It was found that the addition of the of vegetable oil gave lubrication oil has a viscosity index ranging (106-115) and pour point ranging (-14--18)°C. It was found that the effect of addition of corn and castor oil mixture to mineral oil was varied according to the ratio of that oils.
{"title":"Study the Effect of Friendly Environmental Materials Addition on Viscosity Index and Pour Point of Engine Diesel Lubricating Oil","authors":"T. M. Hameed, M. Khudhair, L. A. Abdulridha","doi":"10.22401/JNUS.21.3.12","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.12","url":null,"abstract":"In this work, the effect adding of some vegetable oils to mineral oil on physical properties such as viscosity and pour point of mineral lubricating oil was studied. Some vegetable oils, like corn oil and castor oil were used. Engine lubricating oil (si-cf4 diesel oil) that produced in AL-Doura refinery was selected and used in this study. Viscosity and pour point measurements were tested by viscometer and pour point tester respectively. Deferent mixtures of castor oil and corn oil were prepared with mixing ratios ranging from (0-100)% at 80°C added to the Iraqi motor lubricating oil with a percentage ratio in the range of (0-6 ) % and the best results was obtained at percentage ratio of 6% and study the viscosity index and pour point of the resulting lubricant oil. It was found that the addition of the of vegetable oil gave lubrication oil has a viscosity index ranging (106-115) and pour point ranging (-14--18)°C. It was found that the effect of addition of corn and castor oil mixture to mineral oil was varied according to the ratio of that oils.","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"9 42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122882831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, the function of the pond’s seepage problem is derived using versional approach as especial case of generalized dam problem. In this problem the two dimensional cross section will produce problem with two free surfers which are evaluated as a part of the problem using simulating computer program.
{"title":"Variational Approach for Solving the Ponds Seepage Problem","authors":"F. Fadhel, Isam H Khayoon","doi":"10.22401/JNUS.21.3.17","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.17","url":null,"abstract":"In this paper, the function of the pond’s seepage problem is derived using versional approach as especial case of generalized dam problem. In this problem the two dimensional cross section will produce problem with two free surfers which are evaluated as a part of the problem using simulating computer program.","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134246383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Caspase, or cysteine-dependent aspartate-directed proteases, belong to a extremely protected group of cysteine proteases that have a crucial role within the numerous phases of apoptosis. The derivative of 2-(3,5-dibromo-4-methoxyphenyl)-3(3-mercapto-5(pyridine-4-yl)-4H1,2,4-triazol-4-yl)-thiazolidine4-one (C3) described a high toxic efficacy in murine melanoma tumor(B16F10), human prostate tumor (LCCaP), and non-small cell lung tumor (H1299) by measured half maximal inhibitory concentration IC50 values were 41 µg/ml, 54.11 µg/ml , and 109.9 µg/ml , respectively, which was the most significant cytotoxic towards (B16F10) cell line treated at (P<0.0001) for 24 hours. No significant cytotoxic effect were observed in human neuronal glioblastoma cell line (U138 MG) and testes cell lines (Tera-1) at P-value (0.650), by comparison with normal cell line. Furthermore, 1,2,4-Triazole derivative (C3) encouraged In-vitro increase in caspase-9 activity in (B16F10) tumor cell line. Derivative (C3) effect on the mechanism of apoptosis reveal a highly increased caspase-9 activity, which observed at 10 µg/ml concentrate in B16F10 cell line, IC50 was at 5.264 µg/ml. A series of 1,2,4-Triazole derivatives (C2, C3) were screened for their In -vitro antioxidant properties, through hydrogen peroxide, Nitric oxide, and total antioxidant capacity. The highest activity was indicated during measured (IC50, TAC50) values, with derivatives C2 and C3 by comparison with ascorbic acid as standard. Triazole derivative (C3) did not exhibit cytotoxic activity when applied human neuronal glioblastoma tumor (U138 MG) and testes cell line (Tera-1).
{"title":"Cytotoxic, Antioxidant, and Caspase-9 activity of 2-(3,5-dibromo-4-methoxyphenyl)3(3-mercapto-5(pyridine-4-Yl)4H1,2,4-triazol-4yl)-thiazolidine4-one against various human tumor cell lines","authors":"F. Hassan","doi":"10.22401/JNUS.21.3.04","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.04","url":null,"abstract":"Caspase, or cysteine-dependent aspartate-directed proteases, belong to a extremely protected group of cysteine proteases that have a crucial role within the numerous phases of apoptosis. The derivative of 2-(3,5-dibromo-4-methoxyphenyl)-3(3-mercapto-5(pyridine-4-yl)-4H1,2,4-triazol-4-yl)-thiazolidine4-one (C3) described a high toxic efficacy in murine melanoma tumor(B16F10), human prostate tumor (LCCaP), and non-small cell lung tumor (H1299) by measured half maximal inhibitory concentration IC50 values were 41 µg/ml, 54.11 µg/ml , and 109.9 µg/ml , respectively, which was the most significant cytotoxic towards (B16F10) cell line treated at (P<0.0001) for 24 hours. No significant cytotoxic effect were observed in human neuronal glioblastoma cell line (U138 MG) and testes cell lines (Tera-1) at P-value (0.650), by comparison with normal cell line. Furthermore, 1,2,4-Triazole derivative (C3) encouraged In-vitro increase in caspase-9 activity in (B16F10) tumor cell line. Derivative (C3) effect on the mechanism of apoptosis reveal a highly increased caspase-9 activity, which observed at 10 µg/ml concentrate in B16F10 cell line, IC50 was at 5.264 µg/ml. A series of 1,2,4-Triazole derivatives (C2, C3) were screened for their In -vitro antioxidant properties, through hydrogen peroxide, Nitric oxide, and total antioxidant capacity. The highest activity was indicated during measured (IC50, TAC50) values, with derivatives C2 and C3 by comparison with ascorbic acid as standard. Triazole derivative (C3) did not exhibit cytotoxic activity when applied human neuronal glioblastoma tumor (U138 MG) and testes cell line (Tera-1).","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132635053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This article included the photostabilization study for poly(vinyl chloride)) by using newly stabilizers derived from [1,1 -Bis (4-aminophenyl)-4-Phenyl Cyclohexane] as additives against photodegradation. For that purpose, many samples (films) has been prepared by adding additives to the poly(vinyl chloride) with different weight percentages from additives and by different thickness. The photostabilization activities of these compounds were determined by detecting the carbonyl group (The position off carbonyl absorption is specified at 1724-1770 cm-1) with irradiation time. The absorption spectra of poly vinyl chloride films were followed using Shimadzu Spectrophotometer Also, change the viscosity of the averagee molecular weight and the degree of deterioration (α) and the average number of chain scission (s) was studied .We found through results that the rate of photostabilization in the presences of additives follows the following trend:- C4 > C3 > C2 > C1 > PVCUV absorption peroxide decomposer, for mechanisms haven been suggested according to experimental results obtained.
{"title":"New Stabilizers for Poly(vinyl chloride) Derived from 1,1 -Bis (4-aminophenyl) -4-Phenyl Cyclohexane Compounds[II]","authors":"H. Salman, O. A. Nief, Ahmed A. Ahmed","doi":"10.22401/JNUS.21.3.07","DOIUrl":"https://doi.org/10.22401/JNUS.21.3.07","url":null,"abstract":"This article included the photostabilization study for poly(vinyl chloride)) by using newly stabilizers derived from [1,1 -Bis (4-aminophenyl)-4-Phenyl Cyclohexane] as additives against photodegradation. For that purpose, many samples (films) has been prepared by adding additives to the poly(vinyl chloride) with different weight percentages from additives and by different thickness. The photostabilization activities of these compounds were determined by detecting the carbonyl group (The position off carbonyl absorption is specified at 1724-1770 cm-1) with irradiation time. The absorption spectra of poly vinyl chloride films were followed using Shimadzu Spectrophotometer Also, change the viscosity of the averagee molecular weight and the degree of deterioration (α) and the average number of chain scission (s) was studied .We found through results that the rate of photostabilization in the presences of additives follows the following trend:- C4 > C3 > C2 > C1 > PVCUV absorption peroxide decomposer, for mechanisms haven been suggested according to experimental results obtained.","PeriodicalId":255225,"journal":{"name":"Journal of Al-Nahrain University of Science","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116043679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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