CAJ | 학술논문

从4-羟基偶氮苯出发,依次与2-氯乙醇、丙烯酰氯反应,合成了2-(4-苯基偶氮苯氧基)乙基丙烯酸酯(PAPEA)。接着以PAPEA为单体,二硫代苯甲酸异丁腈酯(CPDB)为链转移剂,偶氮二异丁腈(AIBN)为引发剂,利用可逆加成-断裂链转移(RAFT)聚合法合成了聚[2-(4-苯基偶氮苯氧基)乙基丙烯酸酯](PPAPEA)均聚物,同时考察了反应时间、引发剂和链转移剂浓度等因素对聚合反应的影响。利用FT-IR、1 H-NMR和GPC等对单体和聚合物的结构进行了表征,并利用UV对聚合物的光响应性能进行了测试。结果表明,PA-PEA的聚合反应动力学曲线呈良好的线性关系,分子量分布较窄(小于1．3)；均聚物在紫外光照下的异构化速率随分子量的增大而减缓,而其在自然光下的回复速率变化不大。
종4-간기우담분출발,의차여2-록을순、병희선록반응,합성료2-(4-분기우담분양기)을기병희산지(PAPEA)。접착이PAPEA위단체,이류대분갑산이정정지(CPDB)위련전이제,우담이이정정(AIBN)위인발제,이용가역가성-단렬련전이(RAFT)취합법합성료취[2-(4-분기우담분양기)을기병희산지](PPAPEA)균취물,동시고찰료반응시간、인발제화련전이제농도등인소대취합반응적영향。이용FT-IR、1 H-NMR화GPC등대단체화취합물적결구진행료표정,병이용UV대취합물적광향응성능진행료측시。결과표명,PA-PEA적취합반응동역학곡선정량호적선성관계,분자량분포교착(소우1．3)；균취물재자외광조하적이구화속솔수분자량적증대이감완,이기재자연광하적회복속솔변화불대。
2-(4-Phenylazophenoxy)ethyl acrylate(PAPEA)was synthesized by the consecutive reaction of 4-hydroxyazobenzene with 2-chloroethanol and acryloyl chloride. Poly[2-(4-Phenylazophenoxy)ethyl acrylate](PPAPEA)was prepared via the RAFT poly-merization of PAPEA,using 2-cyanoprop-2-yl dithiobenzoate(CPDB) as a chain transfer agent and 2,2’-azobisisobutyronitrile ( AIBN) as initiator. The effects of reaction time,the concentration of initiator and chain transfer agent on the polymerization of PA-PEA were investigated. The resulting PAPEA and PPAPEA were characterized by FT-IR,1 H-NMR,and GPC. And,the photorespon-sive behavior of PPAPEA was determined by UV. The results showed that the kinetic curve of the polymerization of PAPEA reveals good linear relationship,and the molecular weight distributions were narrower(<1. 3). The rate of isomerization became slow with increasing molecular weight of PPAPEA under ultraviolet irradiation,and the recovery of photo-induced PPAPEA was a little change under natural light.