CRYSTALLIZATION OF RANDOM COPOLYMERS OF POLY(ETHYLENE-TEREPHTHALATE) AND POLY(ETHYLENE NAPHTHALENE-2,6-DICARBOXYLATE)

被引：66

作者：

LU, X ^{[1
]}

WINDLE, AH ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,DEPT MAT SCI,CAMBRIDGE CB2 3QZ,ENGLAND

来源：

POLYMER | 1995年 / 36卷 / 03期

关键词：

CRYSTALLIZATION; RANDOM COPOLYMER; X-RAY DIFFRACTION;

D O I：

10.1016/0032-3861(95)91553-J

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 crystalline structures of a range of specially synthesized random copolyesters of poly(ethylene terephthalate) (PET) and poly(ethylene naphthalene-2,6-dicarboxylate) (PEN) have been studied. It is shown that this system has a crystallization and melting behaviour typical of random copolymers. Significant crystallinity can be induced in the copolymers of all compositions by hot drawing, even if the composition is in the 50/50 region. The results from wide angle X-ray scattering experiments indicate that in two different composition ranges these copolymers show distinctly different crystal structures. The lattice parameters of each of these structures change smoothly with the composition, while the repeat along the chain direction within the crystal is aperiodic. These experimental facts will be discussed in relation to the possibility of co-crystallization of the two types of units.

引用

页码：451 / 459

页数：9

共 26 条

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ALEXANDER LE, 1969, XRAY DIFFRACTION MET, P165

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