含偶氮咔唑生色团氧化乙烯功能单体的合成及其聚合反应研究  

Ethylene Oxide Monomers Functionalized with Azobenzene Chromophore and Their Cationic Ring-opening Polymerization

作　　者：裴海燕[1,2] 徐海荣[1] 王东方[1] 石军[1] 曹少魁[1] 

机构地区：[1]郑州大学材料科学与工程学院,郑州450052 [2]中原工学院材料与化工学院,郑州450002

出　　处：《高分子通报》2010年第4期78-83,共6页Polymer Bulletin

基　　金：国家自然科学基金资助项目(20274042)

摘　　要：设计并合成了含偶氮苯生色团的环氧类功能单体和仅含咔唑环的单体,并以一定比例通过阳离子开环聚合合成了三个新的非共轭主链具有光折变生色团的聚合物,并用GPC、DSC、FT-IR、TG和UV-Vis等手段对所得聚合物进行了表征,考察了共聚单体配比对聚合物玻璃化转变温度的影响。UV-Vis谱图说明聚合物的最大吸收波长取决于生色团的种类。DSC结果显示,通过改变两个单体的配比可以有效调节共聚产物的玻璃化转变温度。TG结果显示,聚合物具有好的热稳定性,325℃左右开始分解。Two ethylene oxide monomers containing carbazole group with and without azobenzene chromophore were synthesized respectively.Three polymers were synthesized from these monomers by cationic ring-opening polymerization with boron trifluoride etherate as initiator.The polymers were characterized by using UV-Vis,GPC and DSC etc.DSC results showed that the glass transition temperature（T_g） of the polymers can be modulated by changing the ratio of the two monomers.TG results showed the polymers are relatively stable under 325℃.

关 键 词：光折变聚合物 阳离子开环聚合 偶氮苯生色团 

分 类 号：O631.3[理学—高分子化学]