Pub Date : 2023-01-01DOI: 10.4236/ojpchem.2023.132002
Ravindra V. Gadhave
{"title":"Radio Frequency Gluing Technique for Wood-to-Wood Bonding: Review","authors":"Ravindra V. Gadhave","doi":"10.4236/ojpchem.2023.132002","DOIUrl":"https://doi.org/10.4236/ojpchem.2023.132002","url":null,"abstract":"","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82083727","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}
Pub Date : 2023-01-01DOI: 10.4236/ojpchem.2023.131001
Ravindra V. Gadhave
{"title":"Comparative Study of Effect of Addition of Calcium Carbonate and Clay on the Performance Properties of Polyvinyl Acetate Wood Glue","authors":"Ravindra V. Gadhave","doi":"10.4236/ojpchem.2023.131001","DOIUrl":"https://doi.org/10.4236/ojpchem.2023.131001","url":null,"abstract":"","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80779185","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}
Pub Date : 2022-01-01DOI: 10.4236/ojpchem.2022.122005
Ravindra V. Gadhave, C. R. Gadhave
{"title":"Application of Thermally Expandable Microspheres in Adhesives: Review","authors":"Ravindra V. Gadhave, C. R. Gadhave","doi":"10.4236/ojpchem.2022.122005","DOIUrl":"https://doi.org/10.4236/ojpchem.2022.122005","url":null,"abstract":"","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"94 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86980173","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}
Pub Date : 2022-01-01DOI: 10.4236/ojpchem.2022.122003
E. Yoshida
A cup shape is a dynamic morphology of cells and organelles. With the aim of elucidating the formation of the biotic cup-shaped morphology, this study investigated cup-shaped vesicles consisting of an amphiphilic diblock copolymer from the aspect of synthetic polymer chemistry. Cup-shaped vesicles were obtained by the polymerization-induced self-assembly of poly(methacrylic acid)-block-poly(n-butyl methacrylate-random-methacrylic acid), PMAA-b-P(BMA-r-MAA), in an aqueous methanol solution using the photo nitrox-ide-mediated controlled/living radical polymerization technique. Field emission scanning electron microscopic observations demonstrated that the cup-shaped vesicles were suddenly formed during the late stage of the polymerization due to the extension of the hydrophobic P(BMA-r-MAA) block chain. During the early stage, the polymerization produced spherical vesicles rather than a cup shape. As the hydrophobic block chain was extended by the polymerization progress, the spherical vesicles reduced the size and were accompanied by the generation of small particles that were attached to the vesicles. The vesicles continued to reduce the size due to further extension of the hydrophobic chain; however, they suddenly grew into cup-shaped vesicles. This growth was accounted for by a change in the critical packing shape of the copolymer due to the hydrophobic chain extension. These findings are helpful for a better understanding of the biotic cup-shaped vesicle
{"title":"Mechanisms of Cup-Shaped Vesicle Formation Using Amphiphilic Diblock Copolymer","authors":"E. Yoshida","doi":"10.4236/ojpchem.2022.122003","DOIUrl":"https://doi.org/10.4236/ojpchem.2022.122003","url":null,"abstract":"A cup shape is a dynamic morphology of cells and organelles. With the aim of elucidating the formation of the biotic cup-shaped morphology, this study investigated cup-shaped vesicles consisting of an amphiphilic diblock copolymer from the aspect of synthetic polymer chemistry. Cup-shaped vesicles were obtained by the polymerization-induced self-assembly of poly(methacrylic acid)-block-poly(n-butyl methacrylate-random-methacrylic acid), PMAA-b-P(BMA-r-MAA), in an aqueous methanol solution using the photo nitrox-ide-mediated controlled/living radical polymerization technique. Field emission scanning electron microscopic observations demonstrated that the cup-shaped vesicles were suddenly formed during the late stage of the polymerization due to the extension of the hydrophobic P(BMA-r-MAA) block chain. During the early stage, the polymerization produced spherical vesicles rather than a cup shape. As the hydrophobic block chain was extended by the polymerization progress, the spherical vesicles reduced the size and were accompanied by the generation of small particles that were attached to the vesicles. The vesicles continued to reduce the size due to further extension of the hydrophobic chain; however, they suddenly grew into cup-shaped vesicles. This growth was accounted for by a change in the critical packing shape of the copolymer due to the hydrophobic chain extension. These findings are helpful for a better understanding of the biotic cup-shaped vesicle","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"2006 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89507376","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}
Pub Date : 2022-01-01DOI: 10.4236/ojpchem.2022.121002
Ravindra V. Gadhave, Pritam V. Dhawale
{"title":"State of Research and Trends in the Development of Polyvinyl Acetate-Based Wood Adhesive","authors":"Ravindra V. Gadhave, Pritam V. Dhawale","doi":"10.4236/ojpchem.2022.121002","DOIUrl":"https://doi.org/10.4236/ojpchem.2022.121002","url":null,"abstract":"","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"100 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87728729","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}
Pub Date : 2022-01-01DOI: 10.4236/ojpchem.2022.123006
Ravindra V. Gadhave
{"title":"Importance of Dynamic Mechanical Analysis to Predict Performance of the Polyvinyl Acetate Wood Adhesives in Summer Season","authors":"Ravindra V. Gadhave","doi":"10.4236/ojpchem.2022.123006","DOIUrl":"https://doi.org/10.4236/ojpchem.2022.123006","url":null,"abstract":"","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87546992","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}
Pub Date : 2022-01-01DOI: 10.4236/ojpchem.2022.121001
V. Olomo
{"title":"Influence of Processing Variables on Some Physico-Chemical Properties and Quality of Manioc Starch-Based Adhesives","authors":"V. Olomo","doi":"10.4236/ojpchem.2022.121001","DOIUrl":"https://doi.org/10.4236/ojpchem.2022.121001","url":null,"abstract":"","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"2016 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86612343","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}
Pub Date : 2022-01-01DOI: 10.4236/ojpchem.2022.122004
Ravindra V. Gadhave, C. R. Gadhave
{"title":"Adhesives for the Paper Packaging Industry: An Overview","authors":"Ravindra V. Gadhave, C. R. Gadhave","doi":"10.4236/ojpchem.2022.122004","DOIUrl":"https://doi.org/10.4236/ojpchem.2022.122004","url":null,"abstract":"","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"90 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76825446","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}
Pub Date : 2021-05-30DOI: 10.4236/ojpchem.2021.112002
Ravindra V. Gadhave, Pritam V. Dhawale, Chaitali S. Sorate
There has been an increasing interest in research on using bio-renewable polymers as a replacement to traditional synthetic polymers based on petroleum resources for adhesive applications. Cellulose, which is the most abundant biopolymer finds application as a reinforcing agent in conventional adhesives. However, natural polymer cellulose suffers from a few drawbacks like poor water resistance, low mechanical strength, and compatibility within the hydrophobic matrix. For emerging as sustainable alternatives for synthetic polymers, cellulose and its derivatives must have comparable physical, chemical, thermal, and mechanical properties to those of synthetic polymers. To achieve this, cellulose has been chemically modified as it has free hydroxyl groups which act as a site for modification. Among various techniques used crosslinking and silane modification have shown better properties. Various silanes have been identified and used for modifying both micro-cellulose and nano-cellulose, by the formation of covalent bonds. Silanes have the ability to react with the low number of free hydroxyl groups present in the cellulose surfaces, therefore promotes surface modification. Hence referring to the increase in the research works related to the silane modification of cellulose and its applicability focusing on wood adhesives, the main aim of this review paper is to summarize various works relating to this field.
{"title":"Surface Modification of Cellulose with Silanes for Adhesive Application: Review","authors":"Ravindra V. Gadhave, Pritam V. Dhawale, Chaitali S. Sorate","doi":"10.4236/ojpchem.2021.112002","DOIUrl":"https://doi.org/10.4236/ojpchem.2021.112002","url":null,"abstract":"There has been an increasing interest in research on using bio-renewable polymers as a \u0000replacement to traditional synthetic polymers based on petroleum resources for \u0000adhesive applications. Cellulose, which is the most abundant biopolymer finds \u0000application as a reinforcing agent in conventional adhesives. However, natural \u0000polymer cellulose suffers from a few drawbacks like poor water resistance, low \u0000mechanical strength, and compatibility within the hydrophobic matrix. For \u0000emerging as sustainable alternatives for synthetic polymers, cellulose and its \u0000derivatives must have comparable physical, chemical, thermal, and mechanical \u0000properties to those of synthetic polymers. To achieve this, cellulose has been \u0000chemically modified as it has free hydroxyl groups which act as a site for \u0000modification. Among various techniques used crosslinking and silane \u0000modification have shown better properties. Various silanes have been identified \u0000and used for modifying both micro-cellulose and nano-cellulose, by the \u0000formation of covalent bonds. Silanes have the ability to react with the low \u0000number of free hydroxyl groups present in the cellulose surfaces, therefore \u0000promotes surface modification. Hence referring to the increase in the research \u0000works related to the silane modification of cellulose and its applicability \u0000focusing on wood adhesives, the main aim of this review paper is to summarize \u0000various works relating to this field.","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"190 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83191549","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}
Pub Date : 2021-01-01DOI: 10.4236/ojpchem.2021.113003
Ravindra V. Gadhave, C. R. Gadhave, Pritam V. Dhawale
Silane terminated prepolymers for adhesives, sealants and coatings are of great industrial importance. They are very important because of their low toxicity over polyurethanes, silicones, and solvent-based products. Hence, many pieces of literature which deal with the synthesis, properties and applications of this Silane terminated polymers hybrid system exist. Silylated polyether (MS polymers) and Silylated Polyurethane Polymers (SPUR) are the bases for numerous sealants, adhesives and coatings used worldwide. A hybrid system mixed with organic-polyurethane proportion and inorganic-alkoxysilane proportion com-bines the benefits of conventional polyurethane and silicone-based products. This article reviews the chemistry of MS polymers and SPUR and their advantages and disadvantages in silyl terminated prepolymer-based adhesives, sealants and coatings as well as provides information on different end applications.
{"title":"Silane Terminated Prepolymers: An Alternative to Silicones and Polyurethanes","authors":"Ravindra V. Gadhave, C. R. Gadhave, Pritam V. Dhawale","doi":"10.4236/ojpchem.2021.113003","DOIUrl":"https://doi.org/10.4236/ojpchem.2021.113003","url":null,"abstract":"Silane terminated prepolymers for adhesives, sealants and coatings are of great industrial importance. They are very important because of their low toxicity over polyurethanes, silicones, and solvent-based products. Hence, many pieces of literature which deal with the synthesis, properties and applications of this Silane terminated polymers hybrid system exist. Silylated polyether (MS polymers) and Silylated Polyurethane Polymers (SPUR) are the bases for numerous sealants, adhesives and coatings used worldwide. A hybrid system mixed with organic-polyurethane proportion and inorganic-alkoxysilane proportion com-bines the benefits of conventional polyurethane and silicone-based products. This article reviews the chemistry of MS polymers and SPUR and their advantages and disadvantages in silyl terminated prepolymer-based adhesives, sealants and coatings as well as provides information on different end applications.","PeriodicalId":19592,"journal":{"name":"Open Journal of Polymer Chemistry","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82605588","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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