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동향자료
저자정보
Cheng, Yumin (State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology) Zhang, Huibo (State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology) Zhang, Shuangkun (State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology) Liu, Weiwei (State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology) Wang, Jing (State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology) Cheng, Run (State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology) Ryu, SeungKon (Jeonju Institute of Machinery and Carbon Composites) Jin, Riguang (State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology)
저널정보
한국탄소학회 Carbon letters Carbon letters 제14권 제1호
발행연도
2013.1
수록면
45 - 50 (6page)

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Polyacrylonitrile (PAN) copolymers of different molecular weights were synthesized by a suspension polymerization and precipitation polymerization method. The rheology behaviors of the synthesized PAN copolymers were investigated in relation to their molecular weight, solid content and melting temperature. The influence of "historical effects" on the spinning solution of PAN was studied by analyzing the laws of viscosity considering the diversification time and temperature. The viscosity disciplines of each spinning solution conformed well to the rheological universal laws in a comparison of the suspension polymerization product with that of precipitation polymerization. Viscosity changes in the swelling process of dissolution were gentler in the suspension polymerization product; a small amount of water will quickly debase the solution viscosity, and high-speed mixing can greatly shorten the time required by the spinning solution to reach the final viscosity.

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