Synthesis and thermal properties of liquid crystalline thermoset containing rigid-rod epoxy

被引：13

作者：

Cho, SH

Lee, JY ^{[1
]}

Douglas, EP

Lee, JY ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Text Engn, Suwon 440746, South Korea

[2] Sungkyunkwan Univ, Polymer Technol Inst, Suwon 440746, South Korea

[3] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA

来源：

HIGH PERFORMANCE POLYMERS | 2006年 / 18卷 / 01期

关键词：

liquid crystalline thermoset; epoxy; smectic; activation energies for decomposition;

D O I：

10.1177/0954008306056484

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

4,4'-diglycidyloxy-alpha-methylstilbene (DOMS) and a novel liquid crystalline thermoset, D2A1 which is obtained from the reaction between DOMS and aniline were synthesized. The thermosets have been characterized with cross-polarized optical microscopy, differential scanning calorimetry, thermogravimetric analysis (TGA) and other techniques. D2A1 was smectic at room temperature and turned to nematic at 85 degrees C upon heating, then turned isotropic at 135 degrees C. Activation energies for decomposition (E-d) using TGA were calculated according to the tec alpha hnique of Flynn-Wall to determine E-d as a function of conversion by a weight loss process.

引用

页码：83 / 99

页数：17

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