LAYERED STRUCTURE WITH SIDE-CHAIN CRYSTALLINITY IN UNDOPED POLY(3-ALKYL THIOPHENES)

被引：35

作者：

HO, KS ^{[1
]}

BARTUS, J ^{[1
]}

LEVON, K ^{[1
]}

MAO, J ^{[1
]}

ZHENG, WY ^{[1
]}

LAAKSO, J ^{[1
]}

TAKA, T ^{[1
]}

机构：

[1] NESTE OY,CTR TECHNOL,SF-06101 PORVOO,FINLAND

来源：

SYNTHETIC METALS | 1993年 / 55卷 / 01期

关键词：

POLY(3-ALKYL THIOPHENE); LAYERED STRUCTURE;

D O I：

10.1016/0379-6779(93)90962-V

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The order formation of alkyl-substituted rigid polymers, like poly(3-alkyl thiophenes), is dependent on the length of the alkyl side chain. The formation of a layered structure can be observed by X-ray diffraction experiments. A linear relationship with the d-spacing for (200) plane and n has been obtained along with the observation of the endotherms for the mesophase transition by the thermal analysis. The endothermic transition temperatures observed by DSC decrease with the increasing number of carbons (n) in the alkyl side chain. Side chain crystallization becomes possible when n is larger than 10, resulting in hexagonal packing of the alkyl chains between the main chain layers.

引用

页码：384 / 387

页数：4