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Fiber Spinning of Polyacrylonitrile Grafted Soy Protein in an Ionic Liquid/DMSO Mixture Solvent |
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| Authors: | Shifeng Deng Jia Cheng Xiaojie Guo Long Jiang Jinwen Zhang |
| Institution: | 1. Composite Materials and Engineering Center, Washington State University, P.O. Box 641806, Pullman, WA, 99164-1806, USA 2. Key Laboratory for Specially Functional Polymeric Materials and Related Technology of the Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China 3. Mechanical Engineering Department, North Dakota State University, NDSU Dept 2490, PO Box 6050, Fargo, ND, 58108, USA |
| Abstract: | 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. |
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