{"title":"乙基纤维素浓溶液的电光双折射和散射","authors":"G. Maitland, O. P. Nwammuo","doi":"10.1002/(SICI)1522-9505(19990701)268:1<1::AID-APMC1>3.0.CO;2-#","DOIUrl":null,"url":null,"abstract":"Photon correlation spectroscopy (PCS) at small scattering vector (kR G ≃ ) and the same is true for the broadening parameters of the decay and rise transients (β r ≃ β d ). The β values were found to decrease with increasing concentration. The experimental results are in qualitative agreement with the theoretical prediction of Doi and Edwards but in quantitative disagreement; thus implying that idealised models are far from describing the true observation. The semi-empirical theory of Douglas and Hubbard aptly described the concentration exponents observed in this work for the zero shear viscosity and the whole chain relaxation data.","PeriodicalId":7808,"journal":{"name":"Angewandte Makromolekulare Chemie","volume":"38 1","pages":"1-12"},"PeriodicalIF":0.0000,"publicationDate":"1999-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Electro‐optic birefringence and scattering of concentrated solutions of ethylcellulose\",\"authors\":\"G. Maitland, O. P. Nwammuo\",\"doi\":\"10.1002/(SICI)1522-9505(19990701)268:1<1::AID-APMC1>3.0.CO;2-#\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Photon correlation spectroscopy (PCS) at small scattering vector (kR G ≃ ) and the same is true for the broadening parameters of the decay and rise transients (β r ≃ β d ). The β values were found to decrease with increasing concentration. The experimental results are in qualitative agreement with the theoretical prediction of Doi and Edwards but in quantitative disagreement; thus implying that idealised models are far from describing the true observation. The semi-empirical theory of Douglas and Hubbard aptly described the concentration exponents observed in this work for the zero shear viscosity and the whole chain relaxation data.\",\"PeriodicalId\":7808,\"journal\":{\"name\":\"Angewandte Makromolekulare Chemie\",\"volume\":\"38 1\",\"pages\":\"1-12\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1999-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Angewandte Makromolekulare Chemie\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/(SICI)1522-9505(19990701)268:1<1::AID-APMC1>3.0.CO;2-#\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Angewandte Makromolekulare Chemie","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/(SICI)1522-9505(19990701)268:1<1::AID-APMC1>3.0.CO;2-#","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Electro‐optic birefringence and scattering of concentrated solutions of ethylcellulose
Photon correlation spectroscopy (PCS) at small scattering vector (kR G ≃ ) and the same is true for the broadening parameters of the decay and rise transients (β r ≃ β d ). The β values were found to decrease with increasing concentration. The experimental results are in qualitative agreement with the theoretical prediction of Doi and Edwards but in quantitative disagreement; thus implying that idealised models are far from describing the true observation. The semi-empirical theory of Douglas and Hubbard aptly described the concentration exponents observed in this work for the zero shear viscosity and the whole chain relaxation data.
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