超支化聚(酰胺-酯)的端基光致变色改性研究  

Photochromism of the Modified Hyperbranched Poly(amide-ester)

作　　者：丁海涛[1] 巴信武[1] 王素娟[1] 张书文[1] 

机构地区：[1]河北大学化学与环境科学学院,河北保定071002

出　　处：《功能高分子学报》2005年第2期180-184,共5页Journal of Functional Polymers

基　　金：国家自然科学基金(20174008);河北省自然科学基金(B2004000093)。

摘　　要：采用丁二酸酐、三羟甲基氨基甲烷为主要原料,先在冰水浴条件下合成AB3型单体,然后进行熔融缩聚制得超支化聚(酰胺酯)(HBP),最后用4(4′二甲氨基苯基偶氮)苯甲酸对HBP的末端羟基进行功能化改性,得到了一种具有光致变色和酸碱变色性的HBP;用紫外光谱对改性超支化聚(酰胺酯)的变色性进行了研究。结果表明随紫外光照时间延长紫外吸收强度增加;随pH值增大紫外吸收波长向短波方向移动。The hyperbranched poly(amide ester) was synthesized based on AB_3 type monomer prepared by the reaction of succinic anhydride and tri(hydroxymethyl)-aminomethane in a ice bath.The hyperbranched poly(amide-ester)s were modified by 4-(4′-dimethylaminophenylazo)benzoic acid (DABCYL), which had photochromism and acid-base discoloration. The photochromism were examined by UV and reveal substitutional effect of the functional group, which had photochromism and acids-bases discoloration, on the hyperbranched poly(amide-ester). The results showed that the absorption intensity for ultraviolet light increased as the irradiating time increased and the blue shift of the UV spectra occurred as pH increased.

关 键 词：超支化聚(酰胺-酯) HBP 功能化改性 光致变色 酸碱变色性 

分 类 号：O633.22[理学—高分子化学]