UNIAXIAL PLANAR DEFORMATION OF PET FILMS .2. CHARACTERIZATION OF THE ORIENTATION FROM MEASUREMENTS OF REFRACTIVE-INDEXES

被引：27

作者：

LAPERSONNE, P

TASSIN, JF

MONNERIE, L

机构：

[1] UNIV MAINE,CNRS,UNITE 509,PHYSICOCHIM MACROMOLEC LAB,F-72017 LE MANS,FRANCE

[2] ECOLE SUPER PHYS & CHIM IND VILLE PARIS,CNRS,UNITE 278,PHYSICOCHIM STRUCT & MACROMOLEC LAB,F-75231 PARIS 05,FRANCE

来源：

POLYMER | 1994年 / 35卷 / 10期

关键词：

BIAXIAL ORIENTATION; REFRACTIVE INDEXES; PET FILMS;

D O I：

10.1016/0032-3861(94)90249-6

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Refractive indices along the three principal directions of uniaxial planar deformed poly(ethylene terephthalate) (PET) films have been used to calculate the second moments of the orientation distribution of the phenyl ring's normal with respect to the three principal directions of the sample. Under our stretching conditions, the phenyl rings show a strong tendency to orient their plane parallel to the plane of the films. The orientation of the chain axis can also be evaluated from the same data. A good correlation is observed between this indirect measurement and direct, but more tedious, techniques such as infra-red dichroism.

引用

页码：2192 / 2196

页数：5

共 23 条

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