{"title":"Viscosity of dilute solutions of randomly branched poly (butyleneterephthalate)","authors":"F. Pilati, A. Munari, P. Manaresi","doi":"10.1016/0390-6035(82)90068-2","DOIUrl":null,"url":null,"abstract":"<div><p>Experimental intrinsic-viscosity data for randomly branched polydisperse polymer samples of poly(butyleneterephthalate), prepared by polycondensation of dimethylterephthalate (DMT) and 1,4-butanediol with small amounts of 1,3,5-tricarboxymethylbenzene (TMT) (from 0.5 to 1.5 mol% of trifunctional units), were used to test different theoretical treatments for different g-rules.</p><p>It was found that the <span><math><mtext>g</mtext><msup><mi></mi><mn><mtext>3</mtext><mtext>2</mtext></mn></msup></math></span> -rule gave the best fits for the results.</p><p>Correlation of intrinsic viscosity with the weight-average degree of branching, B<sub>w</sub>, was obtained by an empirical equation; intrinsic viscosity was also correlated with melt-flow index.</p></div>","PeriodicalId":18221,"journal":{"name":"Materials Chemistry","volume":"7 5","pages":"Pages 649-660"},"PeriodicalIF":0.0000,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0390-6035(82)90068-2","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0390603582900682","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
Experimental intrinsic-viscosity data for randomly branched polydisperse polymer samples of poly(butyleneterephthalate), prepared by polycondensation of dimethylterephthalate (DMT) and 1,4-butanediol with small amounts of 1,3,5-tricarboxymethylbenzene (TMT) (from 0.5 to 1.5 mol% of trifunctional units), were used to test different theoretical treatments for different g-rules.
It was found that the -rule gave the best fits for the results.
Correlation of intrinsic viscosity with the weight-average degree of branching, Bw, was obtained by an empirical equation; intrinsic viscosity was also correlated with melt-flow index.