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Viscosity of dilute solutions of randomly branched poly (butyleneterephthalate)

✍ Scribed by F. Pilati; A. Munari; P. Manaresi

Book ID
103906622
Publisher
Elsevier Science
Year
1982
Weight
373 KB
Volume
7
Category
Article
ISSN
0390-6035

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✦ Synopsis

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 g3/2-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.

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