CAJ | 학술논문

以咪唑磷酸盐类离子液体1-丁基-3-甲基咪唑六氟磷酸盐([bmim][PF6])作为溶剂,在-10℃下以2-氯-2,4,4-三甲基戊烷(TMPCl)、三氟化硼(BF3)为引发体系,实现了对甲氧基苯乙烯(p-MOS)的正离子聚合,得到的聚合物分子摩尔质量达到73150 g/mol,单体转化率超过93.4%。分析了反应温度对聚合的影响,聚合物分子摩尔质量以及聚合物末端结构等,提出了离子液体中对甲氧基苯乙烯正离子聚合的基元反应。并通过1 H-N MR 对结构进行表征。研究证实[bmim][PF6]离子液体中所得聚合物存在含氯末端基和双键末端两种末端结构。
이미서린산염류리자액체1-정기-3-갑기미서륙불린산염([bmim][PF6])작위용제,재-10℃하이2-록-2,4,4-삼갑기무완(TMPCl)、삼불화붕(BF3)위인발체계,실현료대갑양기분을희(p-MOS)적정리자취합,득도적취합물분자마이질량체도73150 g/mol,단체전화솔초과93.4%。분석료반응온도대취합적영향,취합물분자마이질량이급취합물말단결구등,제출료리자액체중대갑양기분을희정리자취합적기원반응。병통과1 H-N MR 대결구진행표정。연구증실[bmim][PF6]리자액체중소득취합물존재함록말단기화쌍건말단량충말단결구。
Cationic polymerization of p-Methoxystyrene (p-MOS)was achieved in imidazole phosphate ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim ][PF6 ]) with 2-chloro-2,4,4-trimethyl pentane (TMPCl ) and boron trifluoride (BF3 )as a initiating system at -10 ℃.The polymer molecular weight achieved 73 150 g/mol,and monomer conversion was more than 93.4%.The influence of reaction temperature and monomer concentrationon the polymerization was analyzed,and the molecular structure was characterized by 1 H-NMR.The results showed that there were two different ends structure of polymer,including chlorine end groups and double bond end groups,and the corresponding mechanism of cationic polymerization of p-Methoxystyrene in ionic liquid was proposed.