原子转移自由基聚合法制备偶氮苯聚合物  

Preparation of photoresponse azobenzene polymer by ATRP

作　　者：刘长玲[1] 王怀宇[2] 宋岩[1] 

机构地区：[1]吉林化工学院材料科学与工程学院,吉林吉林132022 [2]中油吉林石化公司有机合成厂,吉林吉林132022

出　　处：《印染助剂》2016年第8期22-24,共3页Textile Auxiliaries

摘　　要：偶氮苯类聚合物具有光响应性,在信息储存、光电子、分子开关等领域得到了很好的应用。采用原子转移自由基聚合法,以三羟甲基丙烷为核制备引发剂,以偶氮苯为单体合成三臂聚偶氮苯星形聚合物。通过红外光谱仪、核磁共振氢谱仪对聚合物的结构进行表征,结果表明已成功地合成出目标产物。通过GPC(凝胶渗透色谱仪)对其相对分子质量及其分布进行测试,表明合成出的聚合物符合"活性-可控"聚合特征。利用紫外-可见分光光度计测定聚偶氮苯的紫外吸收,结果表明具有光照射下的构型反转。Azobenzene polymers have photoresponsive property and get very good application in fields of information storage, photonics, molecular switch etc. The azobenzene star polymer with three-arm was pre- pared by atom transfer radical polymerization （ATRP）, using the trimethyolpropane as the initiator of nuclear preparation, and azobenzene as the monomer. The structure of polymers were characterized by the infrared spectroscopy （FTIR）, hydrogen nuclear magnetic resonance spectrometer （＇H-NMR）, which showed that the target product was successfully synthesized. The molecular weight and the molecular weight distribution of the polymer was measured by gel permeation chromatograph （GPC）, and the results showed that the synthe- sized polymer agreed with the ＂reactive-controllable＂ characteristics. The result of UV spectrophotometer ab- sorption of polyazobenzene showed the configuration inversion under light radiation.

关 键 词：偶氮苯 光响应性 原子转移自由基聚合 构型反转 

分 类 号：TQ316[化学工程—高聚物工业] TQ050.4