An investigation of glass formation and physical ageing in poly(ethylene terephthalate) by FT-IR spectroscopy

被引：53

作者：

Atkinson, JR ^{[1
]}

Biddlestone, F ^{[1
]}

Hay, JN ^{[1
]}

机构：

[1] Univ Birmingham, Dept Met & Mat, Birmingham B15 2TT, W Midlands, England

来源：

POLYMER | 2000年 / 41卷 / 18期

关键词：

FT-IR spectroscopy; poly(ethylene terephthalate); conformation;

D O I：

10.1016/S0032-3861(00)00017-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

FT-IR spectroscopy has been used to follow changes in chain conformation of poly(ethylene terephthalate) (PET) which occur during glass formation and physical ageing. It has been shown that there is an increase in the population of gauche ethylene glycol conformation at the expense of the trans on cooling the liquid and on physical ageing. This is contrary to a previous interpretation and it is implied that the trans has the higher energy of the two conformations since it is considered to produce less well packing of the polymer chains. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：6965 / 6968

页数：4

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