Thermal properties and processability of dialkoxy-PPV precursors

被引:5
作者
Delmotte, A
Biesemans, M
Gielen, M
Gu, J
VanMele, B
机构
[1] General and Organic Chemistry, Free University of Brussels, 1050 Brussels
[2] Phys. Chemistry and Polymer Science, Free University of Brussels, 1050 Brussels
[3] High Resolution NMR Centre, Free University of Brussels, 1050 Brussels
关键词
dialkoxy-PPV-(precursors); glass transition; thermal properties;
D O I
10.1016/S0032-3861(96)00352-7
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A homologous series of ring-substituted dialkoxy-PPV precursors have been synthesized and characterized. By increasing the number of methylene units in the side groups up to six, a linear decrease of the glass transition temperature is found, with a span of ca. 100 degrees C, going from 92 degrees C down to -11 degrees C. T.m.a. experiments reveal high stretchability of thin films at temperatures just above T-g without elimination. The thermal conversion of the precursor polymer into the conjugated materials was studied and with controllable amounts of catalytic acid in the thin films, a well-defined processing window can be established in order to prepare stretched, conjugated thin films of dialkoxy-PPV material. Copyright (C) 1996 Elsevier Science Ltd.
引用
收藏
页码:5395 / 5399
页数:5
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