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Structure–property relationships for sulfonated poly(butylene terephthalate)

✍ Scribed by Bret J. Chisholm; William D. Richards; Timothy E. Banach; Sofia Soloveichik; James F. Kelley; Greg R. Bradtke; Sandeep Dhawan

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
381 KB
Volume
100
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

Structure–property relationships have been developed for sulfonated poly(butylene terephthalate) copolymers. The compositional variables investigated were sulfonate content, molecular weight, and polymer endgroup composition, and the fundamental polymer properties evaluated were melt viscosity, crystallization kinetics, and impact strength. It was found that all compositional variables significantly affect all of the polymer properties of interest. The most interesting effect is the influence of polymer endgroup composition on polymer properties. The trends indicate that the carboxylic acid endgroups form intermolecular interactions with sodium sulfonate groups, resulting in a decrease in the strength of intermolecular ionic interactions between sodium sulfonate groups. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 4662–4771, 2006

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