Approaches to conjugated polymers via new solid state polymerizations

被引：7
|
作者：
Sandman, DJ [1 ]
Njus, JM [1 ]
Tran, B [1 ]
机构：
[1] Univ Massachusetts, Dept Chem, Ctr Adv Mat, Lowell, MA 01854 USA
来源：
MACROMOLECULAR SYMPOSIA | 2004年 / 216卷
关键词：
conjugated polymers; monoacetylenes; nitriles; polydiacetylenes; solid state polymerization; thermal reactivity;
D O I：
10.1002/masy.200451209
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Solid state polymerization is the most convenient approach for the synthesis of macroscopic polymer single crystals. Motivations for seeking fully crystalline specimens of conjugated polymers other than polydiacetylenes (PDA) are presented. The thermal reactivity of p-ethynylbenzoiic acid (EBA) is found to be a topochemically initiated solid state polymerization. The studies of EBA led to a new paradigm for solid state reactivity in such systems. Systems related to the paradigm, namely p-cyanobenzoic acid (CNBA) and p-cyanocinnamic acid (CNCA) have been studied. Sublimation competed with thermal processes in CNBA and CNCA, and a detailed product description has proved difficult to date. Thermochromism and charge-transfer transitions in PDA are discussed.
引用
收藏
页码：77 / 85
页数：9
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