Free radical copolymerization of acrylonitrile with different comonomers in 1-buty-3-methylimidazolium chloride
Free radical copolymerization of acrylonitrile (AN) with various comonomers in 1-buty-3-methyli-midazolium chloride (bmimCl) with azobisisobutyronitrile (AIBN) as initiator were investigated. The copolymerization kinetics, the constitutes and the thermal properties were analyzed in details. The compositions of the resulted copolymers were analyzed by Elemental analysis. All the reactions proceeded fast in ionic liquid, while polymerization rate varied with different comonomers under the same reaction conditions. In 120 min, a limit conversion of around 80% is reached in the copolymerization except when N-vinylpyrrolidone (NVP) acted as comonomer. Polymers with viscosity molecular weight higher than 10 5 g/mol were synthesized in the used ionic liquid. Thermal properties were analyzed by differential scanning calorimetry (DSC). It is shown that the onsets of cyclization of the copolymers except for P (AN-MA) shifted to a lower temperature compared to homopolymer, showing an improvement of the cyclization reaction.
ZHANG Qing DENG Jing ZHANG Yumei WANG Huaping
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University,S State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University,
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
497-500
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）