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NMR study of ester-interchange reactions during melt mixing of poly(ethylene terephthalate)/poly(butylene terephthalate) blends

✍ Scribed by B. Jacques; J. Devaux; R. Legras; E. Nield

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 479 KB
Volume: 34
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(199605)34:7<1189::aid-pola4>3.0.co;2-z

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✦ Synopsis

Belgium, 'imperial Chemical Industries, Paints Division, Wexham Road, Slough SL2 5DS, U.K.

SYNOPSIS

The occurrence of ester-interchange reactions during PET/PBT blend processing has been confirmed by I3C-NMR measurements. The limitations of the method for precise quantification of the extent of reaction between high molecular weight polyester blends have also been pointed out. Titanium alkoxide has been confirmed as an efficient catalyst, and, within experimental precision, the stabilizing effect of triphenyl phosphite addition has been demonstrated. 0 1996 John Wiley & Sons, Inc.

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