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Influence of "Historical Effects" on the Rheological Properties of a Polyacrylonitrile Copolymer Solution
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  • Journal title : Carbon letters
  • Volume 14, Issue 1,  2013, pp.45-50
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2012.14.1.045
 Title & Authors
Influence of "Historical Effects" on the Rheological Properties of a Polyacrylonitrile Copolymer Solution
Cheng, Yumin; Zhang, Huibo; Zhang, Shuangkun; Liu, Weiwei; Wang, Jing; Cheng, Run; Ryu, SeungKon; Jin, Riguang;
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 Abstract
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.
 Keywords
historical effect;suspension polymerization;rheological property;apparent viscosity;precipitation polymerization;polyacrylonitrile;
 Language
English
 Cited by
1.
In situ preparation of silver–polyacrylonitrile nanocomposite fibres, European Polymer Journal, 2015, 69, 385  crossref(new windwow)
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