Fiber Spinning of Polyacrylonitrile Grafted Soy Protein in an Ionic Liquid/DMSO Mixture Solvent
Fiber Spinning of Polyacrylonitrile Grafted Soy Protein in an Ionic Liquid/DMSO Mixture Solvent
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DOI：
10.1007/s10924-013-0617-8
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发表时间：
2014-03
影响因子：
5.3
通讯作者：
Shifeng Deng;Jia Cheng;Xiaojie Guo;Long Jiang;Jinwen Zhang
中科院分区：
文献类型：
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作者：
Shifeng Deng;Jia Cheng;Xiaojie Guo;Long Jiang;Jinwen Zhang
首次研究了离子液体BMIMCL（氯化1-丁基-3-甲基咪唑）对大豆分离蛋白溶液的影响。在BMIMCL/二甲基亚砜（DMSO）混合溶剂中，以大豆分离蛋白（SPI）为催化剂，进行丙烯腈单体的原位聚合制备SPI-g-PAN。将该接枝聚合物与纯PAN在BMIMCL/DMSO（1：5）中共混，并使用湿法纺丝法纺丝成纤维。研究了大豆分离蛋白含量和溶液温度对纺丝原液粘弹性的影响。用FTIR、DSC和溶液研究证实了PAN的接枝。研究了不同拉伸倍数下纺丝纤维的微观结构和力学性能。
The effects of ionic liquid BMIMCL (1-buthyl-3-methyl-imidazolium-chloride) on the solution of soy protein isolate (SPI) were first studied. In situ polymerization of acrylonitrile monomer in the presence of SPI was conducted in a BMIMCL/dimethyl sulfoxide (DMSO) mixture solvent to produce SPI-g-PAN. This graft polymer was blended with pure PAN in BMIMCL/DMSO (1:5) and spun into fiber using a wet spinning method. The effects of SPI content and solution temperature on the viscoelasticity of the spinning dope were studied. FTIR, DSC and solution studies were used to confirm the grafting of PAN. Microstructure and mechanical properties of the spun fibers under different draw ratios were investigated.