{"title":"随机支化聚对苯二甲酸丁二酯：熔体流动指数与支化参数的相关性","authors":"F. Pilati, A. Munari, P. Manaresi","doi":"10.1016/0390-6035(82)90069-4","DOIUrl":null,"url":null,"abstract":"<div><p>Samples of randomly branched poly(butyleneterephthalate) with different degrees of branching were prepared by polycondensation of dimethylterephthalate (DMT), 1,4-butanediol (BD) and small amounts of 1,3,5-trycarboxymethylbenzene (TMT) (from 0.005 to 0.015 (mol TMT)/(mol DMT)).</p><p>The values of <span><math><mtext>M</mtext></math></span><sub>w</sub> were calculated according to Stockmayer from the reaction conversion, p, and correlated with melt-flow index.</p><p>Bate's empirical equation provided a good correlation between the branching parameter, <span><math><mtext>B</mtext></math></span><sub>w</sub>, and the viscosity ratio (<<em>η</em><sub>b</sub>>/<<em>η</em><sub>1</sub>>).</p></div>","PeriodicalId":18221,"journal":{"name":"Materials Chemistry","volume":"7 5","pages":"Pages 661-673"},"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)90069-4","citationCount":"6","resultStr":"{\"title\":\"Randomly branched poly (butyleneterephthalate): Correlation between melt-flow index and branching parameters\",\"authors\":\"F. Pilati, A. Munari, P. Manaresi\",\"doi\":\"10.1016/0390-6035(82)90069-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Samples of randomly branched poly(butyleneterephthalate) with different degrees of branching were prepared by polycondensation of dimethylterephthalate (DMT), 1,4-butanediol (BD) and small amounts of 1,3,5-trycarboxymethylbenzene (TMT) (from 0.005 to 0.015 (mol TMT)/(mol DMT)).</p><p>The values of <span><math><mtext>M</mtext></math></span><sub>w</sub> were calculated according to Stockmayer from the reaction conversion, p, and correlated with melt-flow index.</p><p>Bate's empirical equation provided a good correlation between the branching parameter, <span><math><mtext>B</mtext></math></span><sub>w</sub>, and the viscosity ratio (<<em>η</em><sub>b</sub>>/<<em>η</em><sub>1</sub>>).</p></div>\",\"PeriodicalId\":18221,\"journal\":{\"name\":\"Materials Chemistry\",\"volume\":\"7 5\",\"pages\":\"Pages 661-673\"},\"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)90069-4\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0390603582900694\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0390603582900694","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Randomly branched poly (butyleneterephthalate): Correlation between melt-flow index and branching parameters
Samples of randomly branched poly(butyleneterephthalate) with different degrees of branching were prepared by polycondensation of dimethylterephthalate (DMT), 1,4-butanediol (BD) and small amounts of 1,3,5-trycarboxymethylbenzene (TMT) (from 0.005 to 0.015 (mol TMT)/(mol DMT)).
The values of w were calculated according to Stockmayer from the reaction conversion, p, and correlated with melt-flow index.
Bate's empirical equation provided a good correlation between the branching parameter, w, and the viscosity ratio (<ηb>/<η1>).
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