含噻唑偶氮苯生色团环氧树脂类聚合物的合成与表征

SYNTHESIS AND CHARACTERIZATION OF EPOXY-BASED POLYMERS CONTAINING THIAZOLEAZOBENZENE CHROMOPHORES

合成了2-氨基-4-氯-5-甲酰基噻唑和2-氨基-4-氯-5-二氰乙烯基噻唑.分别将其与亚硝酰硫酸反应配制成重氮盐,通过在极性溶剂中与含苯胺残基的环氧树脂类前体聚合物BP-AN进行重氮偶合反应,得到了两种含噻唑偶氮苯生色团的环氧树脂类聚合物BP-1A-T-F和BP-1A-T-2CN.利用仪器分析手段对其结构、光谱特性和热性能进行了表征,BP-1A-T-F和BP-1A-T-2CN的最大吸收波长分别为579nm和650nm;玻璃化转变温度152℃和149℃.

Two kinds of epoxy-based azo polymers containing thiazoleazobenzene chromophores have been designed.An epoxy-based precursor polymer was prepared by polymerization of diglycidyl ether of bisphenol-A and aniline.Two 2-aminothiazole derivatives,such as 2-amino-4-chloro-5-formylthiazole and 2-amino-4-chloro- 5-dicyanovinylthiazole,were synthesized and their diazonium salts were prepared.The precursor polymer was postfunctionalized through azo-coupling reactions to form two azo polymers BP-1A-T-F and BP-1A-T-2CN.The azo polymers were characterized by the spectroscopic methods and thermal analysis.Polymers containing heteroaromatic chromophores exhibit improved temporal stability and show good solubility and processibility.The λmaxs of BP-1A-T-F and BP-1A-T-2CN obtained by UV-Vis spectroscopy are 579 nm and 650 nm;Tgs of the polymers are 152℃ and 149℃ ,respectively.