CAJ | 학술논문

以离子液体1-丁基-3-甲基咪唑氯化物为溶剂,研究了丙烯腈（AN）与衣康酸（IA）的二元共聚反应。利用红外光谱和元素分析法对聚合物进行了化学结构和组成分析,结果表明在离子液体中制备的AN与IA的共聚物与在常规溶剂中的产物有相同的结构并且组成相近。对共聚反应动力学进行了详细探讨,确定了AN与IA在离子液体中较适宜的反应条件：引发剂偶氮二异丁腈占总单体质量浓度0.8%,总单体质量浓度18%,投料中IA质量浓度2%,温度340 K,反应2h。采用差示扫描量热分析和热失重分析方法对聚合产物热性能进行了研究,结果表明：随着IA在共聚物中含量增加,相应共聚物的环化放热起始温度和峰值温度降低,碳化残留量随着共聚物中IA含量的增加,先增加后减少。
이리자액체1-정기-3-갑기미서록화물위용제,연구료병희정（AN）여의강산（IA）적이원공취반응。이용홍외광보화원소분석법대취합물진행료화학결구화조성분석,결과표명재리자액체중제비적AN여IA적공취물여재상규용제중적산물유상동적결구병차조성상근。대공취반응동역학진행료상세탐토,학정료AN여IA재리자액체중교괄의적반응조건：인발제우담이이정정점총단체질량농도0.8%,총단체질량농도18%,투료중IA질량농도2%,온도340 K,반응2h。채용차시소묘량열분석화열실중분석방법대취합산물열성능진행료연구,결과표명：수착IA재공취물중함량증가,상응공취물적배화방열기시온도화봉치온도강저,탄화잔류량수착공취물중IA함량적증가,선증가후감소。
The free radical copolymerization of acrylonitrile（AN） and itaconic acid（IA） in l-buty-3-methy-limidazolium chloride（[bmim]Cl） were investigated.The chemical structure and composition of the copolymers were analyzed by Fourier Transform Infrared Spectroscopy（FT-IR） and elemental analysis.It was shown that the obtained polymers possessed the same structure and composition with that prepared in conventional solvents.The polymerization kinetics was discussed in detail.It was concluded that the proper copolymerization condition for AN and IA copolymerized in[bmim]Cl was as follows：initiator concentration was 0.8%,IA concentration was 2%monomers concentration was 18%,temperature was 67℃and reaction time was 2 hours.The thermal properties of the resulted polymers were analyzed by differential scanning calorimetry（DSC） and thermal gravimetric（TG）.It was found that with the increase of IA content in the copolymer,the initiation and peak temperature of the carbonized cyclization shifted to a lower temperature,while the char yield increased at first and then decreased.