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Kinetics of transesterification of dimethyl terephthalate with 1,4-butanediol catalyzed by tetrabutyl titanate

✍ Scribed by J. Hsu; K. Y. Choi

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
532 KB
Volume
32
Category
Article
ISSN
0021-8995

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✦ Synopsis

The kinetics of tetrabutyl titanate catalyzed transesterification of dimethyl terephthalate (DMT) with l,4butanediol (BD) is investigated. Detailed analysis of experimental data indicates that equal reactivity hypothesis for functional groups is valid for [BD]/[Dm molar ratios greater than 2 up to 75% conversion. Effects of reaction temperature and catalyst concentration are also discussed.

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## Abstract Linear copolymeric polyesters (polyoxoesters) containing thioether functions [poly(3,3′‐thiodipropionic acid‐__co__‐α,ω‐alkanediols)] were formed in good yield by esterification of an equimolar mixture of 3,3′‐thiodipropionic acid (4‐thiaheptane‐1,7‐dioic acid) and 1,6‐hexanediol (weigh