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
收藏
页码：83 / 99
页数：17
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