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Molecular Weight Distribution of Liquid Phase AN and Solid Phase Polymer in Precipitation Polymerization of AN By Changing Solution Composition and Temperature
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  • Journal title : Carbon letters
  • Volume 13, Issue 3,  2012, pp.133-138
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2012.13.3.133
 Title & Authors
Molecular Weight Distribution of Liquid Phase AN and Solid Phase Polymer in Precipitation Polymerization of AN By Changing Solution Composition and Temperature
Liu, Weiwei; Zhang, Shuangkun; Wang, Jing; Ryu, Seung Kon; Jin, Ri-Guang;
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According to kinetic mechanisms, liquid phase polymerization and solid phase polymerization are different in acrylonitrile (AN) polymerization, and so the relationship between the contribution ratio and molecular weight distribution (MWD) was obtained through theoretic analysis. The precipitation homopolymerization of AN was carried out in a mixture solution of dimethyl sulfoxide (DMSO) and water at using ,-azobisisobutyronitrile as an initiator. The contribution ratio decreased and approached 0; the MWD also decreased and approached 2 with the increase of the /DMSO ratio from 10/90 to 90/10. The experimental data were found to coincide well with the theoretical equation derived from the mechanisms.
molecular weight distribution;precipitation polymerization;contribution ratio of liquid phase acrylonitrile and solid phase polymer;
 Cited by
Contribution of the solid phase polymerization to the molecular weight distribution in acrylonitrile precipitation copolymerization,;;;;;

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