SOLUTION COPOLYMERIZATION OF ACRYLONITRILE WITH 1-ALLYL3-METHYL-IMIDAZOLIUM

ZHANG Guibao; LIU Xiaohui; LI Baixiang; BAI Yungang

doi:10.3724/SP.J.1105.2009.00216

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SOLUTION COPOLYMERIZATION OF ACRYLONITRILE WITH 1-ALLYL3-METHYL-IMIDAZOLIUM

Research Article | 更新时间：2021-03-19

- SOLUTION COPOLYMERIZATION OF ACRYLONITRILE WITH 1-ALLYL3-METHYL-IMIDAZOLIUM
- Acta Polymerica Sinica Issue 3, Pages: 216-221(2009)
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- DOI：10.3724/SP.J.1105.2009.00216
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- Published：20 March 2009，
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ZHANG Guibao, LIU Xiaohui, LI Baixiang, BAI Yungang. SOLUTION COPOLYMERIZATION OF ACRYLONITRILE WITH 1-ALLYL3-METHYL-IMIDAZOLIUM. [J]. Acta Polymerica Sinica (3):216-221(2009)
DOI：

ZHANG Guibao, LIU Xiaohui, LI Baixiang, BAI Yungang. SOLUTION COPOLYMERIZATION OF ACRYLONITRILE WITH 1-ALLYL3-METHYL-IMIDAZOLIUM. [J]. Acta Polymerica Sinica (3):216-221(2009) DOI： 10.3724/SP.J.1105.2009.00216.

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

rAMIM］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.

Abstract

Ionic liquid comonomer 1-allyl-3-methylimidazolium chloride (［AMIM］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 ［AMIM］Cl are as follows:rAN=8.11

rAMIM］Cl=0.The copolymers were obtained with high molecular weights and high hydrophilicity.［AMIM］Cl has dual functions in the dope:the part in the molecular chains can mediate the hydrophilicity and spinnicity of the copolymers

and the other part in the solution can decrease the viscosity of the dope.The copolymers were characterized by 1H-NMR

GPC

DSC and TGA.The copolymers may be potentially useful in preparing precursor fibers and carbon fibers.

关键词

1-烯丙基-3-甲基咪唑盐酸盐离子液体单体丙烯腈自由基共聚碳纤维

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