CAJ | 학술논문

以丙烯酸羟乙酯（HEA）、丙烯腈（AN）为单体，偶氮二异丁腈（AIBN）为引发剂，β-巯基乙醇（β-ME）为链转移剂在甲醇溶剂中通过自由基聚合，制备了HEA-AN共聚物。用红外光谱11（FT-IR）、H核磁共振（ H-NMR）以及热重分析（TG）对聚合物的结构进行了分析表征。通过控制变量的方法研究了反应温度、时间、引发剂用量、链转移剂用量等对聚合反应中的黏均分子质量、转化率的影响；对比分析了一次投料和连续投料2种方法合成的共聚物的羟值，发现连续投料法合成的聚合物在反应过程中羟值变化很小，合成的聚合物结构组成均匀性更好。
이병희산간을지（HEA）、병희정（AN）위단체，우담이이정정（AIBN）위인발제，β-구기을순（β-ME）위련전이제재갑순용제중통과자유기취합，제비료HEA-AN공취물。용홍외광보11（FT-IR）、H핵자공진（ H-NMR）이급열중분석（TG）대취합물적결구진행료분석표정。통과공제변량적방법연구료반응온도、시간、인발제용량、련전이제용량등대취합반응중적점균분자질량、전화솔적영향；대비분석료일차투료화련속투료2충방법합성적공취물적간치，발현련속투료법합성적취합물재반응과정중간치변화흔소，합성적취합물결구조성균균성경호。
Using acrylonitrile (AN) and 2-hydroxyethyl acrylate (HEA) as the raw materials,azobisisbutyronitrile (AIBN) as the initiator,β-mercaptoethanol (β-ME) as the chain transfer agent,the HEA-AN copolymer was synthesized by free radical copolymerization in methyl alcohol as the solvent. The copolymer was analyzed and characterized by FT-1IR, HNMR and TG. The influences of reactions conditions including reaction temperature,reaction time,amount of initiator and concentration of chain transfer agent on the Mη and the conversion rate were studied by the control variables method.Two synthesis methods,one-time feeding and continuous feeding of raw materials,were contrastively investigated by hydroxyl value analysis of polymers,it was concluded that the hydroxyl value of polymer synthesized by continuous feeding method changed slowly,so the composition uniformity of polymer synthesized by this method is better.