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Elastic Light Scattering Studies on Cold-crystallization Behaviors of Syndiotactic Polystyrene

  • GUO Jian-Wei ,
  • LIU Ming-Kai ,
  • YANG Jin ,
  • ZHOU Ju-Ying ,
  • YANG Kun ,
  • CHEN Xu-Dong
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  • a School of Light and Chemical Engineering, Guangdong University of Technology, Guangzhou 510006;
    b Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275

Received date: 2011-06-27

  Revised date: 2011-09-07

  Online published: 2011-10-19

Supported by

Project supported by the Key Technical Innovation Project of Universities of Guangdong Province (No.100187) and the Science and Technology Project of Guangdong Province (No. 0100121).

Abstract

The cold-crystallization behavior of syndiotactic polystyrene (sPS) and its isothermal kinetics were studied by elastic scattering method in this work. It was shown that the scattering signal was very sensitive to the conformational change of sPS chains upon heating. The glass transition temperature (Tg) and cold-crystallization temperature (Tc) obtained by elastic scattering were in good agreement with those measured by DSC method. In addition, it can be clearly observed in the plot of temperature-dependent scattering intensity, there are several stages during the cold-crystallization process, i.e., nucleation phase, nucleus growth phase and secondary crystallization phase. By using isothermal scattering data and Arrhenius equation, the apparent activation energy of cold-crystallization of sPS was estimated to be 309 kJ/mol.

Cite this article

GUO Jian-Wei , LIU Ming-Kai , YANG Jin , ZHOU Ju-Ying , YANG Kun , CHEN Xu-Dong . Elastic Light Scattering Studies on Cold-crystallization Behaviors of Syndiotactic Polystyrene[J]. Acta Chimica Sinica, 2012 , 70(03) : 254 -258 . DOI: 10.6023/A1106272

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