Microenvironments in poly(ethylene terephthalate) film revealed by means of fluorescence measurements

被引：29

作者：

Itagaki, H

Inagaki, Y

Kobayashi, N

机构：

[1] Department of Chemistry, Faculty of Education, Shizuoka University, Shizuoka 422

来源：

POLYMER | 1996年 / 37卷 / 16期

关键词：

poly(ethylene terephthalate); fluorescence spectroscopy; crystallinity; amorphous;

D O I：

10.1016/0032-3861(96)00208-X

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The fluorescence behaviour of poly(ethylene terephthalate) (PET) films prepared by using a spin-casting method was measured. The wavelength of the fluorescence peak was found to be dependent on the casting temperature, T-cast. This fluorescence is neither from a ground state dimer nor from an excimer. It is the redshifted fluorescence of either the phenylene group or the phenylene exciplex due to interactions involving some contributions of charge-transfer stabilization among phenylene and carbonyl groups and/or phenylene groups. Both d.s.c. and i.r. measurements clearly showed that the fluorescence reflects whether the main-chain phenylene ring of PET is in the crystal region or in the amorphous region. Copyright (C) 1996 Elsevier Science Ltd.

引用

页码：3553 / 3558

页数：6

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