Fast-scan chip-calorimeter measurement on the melting behaviors of melt-crystallized syndiotactic polystyrene

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• 作者：Zhaolei Li (1) (2)
  Xiaoming Jiang (1)
  Huanhuan Gao (1)
  Dongshan Zhou (1)
  Wenbing Hu (1)
  
• 关键词：Fast ; scan chip ; calorimeter ; Syndiotactic polystyrene ; Melting ; recrystallization ; Multiple endothermic peaks
• 刊名：Journal of Thermal Analysis and Calorimetry
• 出版年：2014
• 出版时间：December 2014
• 年：2014
• 卷：118
• 期：3
• 页码：1531-1536
• 全文大小：379 KB
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• 作者单位：Zhaolei Li (1) (2)
  Xiaoming Jiang (1)
  Huanhuan Gao (1)
  Dongshan Zhou (1)
  Wenbing Hu (1)
  
  1. Key Laboratory of High Performance Polymer Materials and Technology, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China
  2. School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China
  
• ISSN：1572-8943

文摘

We employed fast-scan chip-calorimeter (FSC) measurement (Flash DSC1) to study the melting of syndiotactic polystyrene after melt-crystallized at various cooling rates as well as after isothermally crystallized at various high temperatures. We attributed the observed double melting peak to a melting-recrystallization process of beta-form crystals upon heating, as evidenced by their variations with different cooling and heating rates. Our experiments demonstrated the advantages of FSC techniques in the investigation of crystallization and melting behaviors of polymer materials.