PHASE-BEHAVIOR OF SYNDIOTACTIC POLYSTYRENE DECALIN

被引：44

作者：

DEBERDT, F ^{[1
]}

BERGHMANS, H ^{[1
]}

机构：

[1] KATHOLIEKE UNIV LEUVEN,POLYMER RES LAB,CELESTIJNENLAAN 200F,B-3001 LOUVAIN,BELGIUM

来源：

POLYMER | 1993年 / 34卷 / 10期

关键词：

SYNDIOTACTIC POLYSTYRENE; DECALIN; SOLUTIONS; PHASE BEHAVIOR; CONFORMATIONAL TRANSITION;

D O I：

10.1016/0032-3861(93)90750-5

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 phase behaviour of syndiotactic polystyrene-decalin is studied by differential scanning calorimetry, wide-angle X-ray scattering and thermogravimetric analysis. Both the trans and cis isomers of the solvent have been used. The polymer chain can adopt a helix or a zigzag conformation. The formation of these conformations and their relative contribution to the crystalline structure depend on the initial concentration, the scanning rate and the thermal history of the samples. High cooling rates and low polymer concentrations tend to favour the formation of the helix structure. The conformational transition from the helix to the zigzag conformation can take place on heating. This depends on the experimental conditions.

引用

页码：2192 / 2201

页数：10

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