摘要
以1-烯丙基-3-甲基咪唑盐酸盐([AMIM]Cl)作为离子液体单体,偶氮二异丁腈作为引发剂,二甲基亚砜为溶剂,实现了与丙烯腈(AN)在不同反应条件下的自由基共聚合.研究了AN/[AMIM]Cl二元共聚合的动力学,得到了相应的竞聚率数据(rAN=8.11,r[AMIM]Cl=0).用1H-NMR、GPC、DSC、TGA等手段对共聚物进行了表征.通过对AN/[AMIM]Cl二元共聚及AN/IA/[AMIM]Cl三元共聚的研究发现,[AMIM]Cl在与丙烯腈共聚时具有双重作用,一部分离子单体进入到共聚物的分子链中调节其亲水性及可纺性,剩下的大部分留在纺丝液中可显著降低纺丝液的黏度,从而使高分子量高固含量纺丝液的纺制成为可能,有望得到高性能的碳纤维原丝.
Ionic liquid comonomer 1-allyl-3-methyl-imidazolium(chloride(Cl)) was first used to copolymerize with acrylonitrile(AN) successfully in various conditions.This was achieved by using azobisisobutyronitrile as the initiator and dimethyl sulfoxide as the solvent.The kinetics of the above copolymerization was studied.The values of monomer apparent reactivity ratios were calculated.The apparent reactivity ratios of AN and Cl are as follows:r_(AN)=8.11,r_(Cl)=0.The copolymers were obtained with high molecular wei...
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2009年第3期216-221,共6页
Acta Polymerica Sinica
基金
国家重点基础研究发展计划(973计划
项目号2006CB605301)资助项目