高等学校化学学报 ›› 2016, Vol. 37 ›› Issue (12): 2315-2322.doi: 10.7503/cjcu20160394

• 高分子化学 • 上一篇    

反式-/顺式-1,4-聚异戊二烯共混体系的结晶动力学

姚坤承1,2, 聂华荣1, 马韵升2, 王日国3, 王晓建1, 贺爱华1()   

  1. 1. 山东省烯烃催化与聚合重点实验室, 橡塑材料与工程教育部重点实验室,青岛科技大学高分子科学与工程学院, 青岛 266042
    2. 黄河三角洲京博化工研究院有限公司, 滨州 256500
    3. 山东华聚高分子材料有限公司, 滨州 256500
  • 收稿日期:2016-05-30 出版日期:2016-12-10 发布日期:2016-11-18
  • 作者简介:联系人简介: 贺爱华, 女, 博士, 博士生导师, 主要从事烯烃、 二烯烃配位聚合及聚合物结构性能与应用研究. E-mail:aihuahe@iccas.ac.cn; ahhe@qust.edu.cn
  • 基金资助:
    国家“九七三”计划项目[批准号: 2015CB654700(2015CB654706)]、 国家自然科学基金(批准号: 51473083)、 山东省重点项目研发计划(批准号: 2015GGX102019)和泰山学者工程及黄河三角洲学者工程专项经费资助

Crystallization Kinetics of trans-/cis-Polyisoprene Blends

YAO Kuncheng1,2, NIE Huarong1, MA Yunsheng2, WANG Riguo3, WANG Xiaojian1, HE Aihua1,*()   

  1. 1. Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization, Key Laboratory of Rubber-Plastics(Ministry of Education), School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
    2. Chambroad Chemical Industry Research Institute Co., Ltd., Binzhou 256500, China
    3. Shandong Huaju Polymer Materials Co., Ltd., Binzhou 256500, China
  • Received:2016-05-30 Online:2016-12-10 Published:2016-11-18
  • Contact: HE Aihua E-mail:aihuahe@iccas.ac.cn;ahhe@qust.edu.cn
  • Supported by:
    † Supported by the National Basic Research Program of China[No.2015CB654700(2015CB654706)], the National Natural Science Foundation of China(No.51473083), the Shandong Province Key R&D Program, China(No.2015GGX102019) and the Special Foundation of Taishan Mountain Scholar Constructive Program and the Yellow River Delta Scholar Program, China

摘要:

采用差示扫描量热(DSC)法对反式-/顺式-1,4-聚异戊二烯共混体系的等温及非等温结晶动力学进行了研究, 分别采用Avrami方程和莫志深法对其动力学参数进行了解析. 研究结果表明, 在反式-/顺式-1,4-聚异戊二烯共混体系的等温及非等温结晶过程中, 顺式-1,4-聚异戊二烯(CPI)组分的存在会降低反式-1,4-聚异戊二烯(TPI)组分的结晶速率; 在等温结晶过程中, CPI组分会提高TPI组分自身的结晶度; 而非等温结晶过程中, CPI则提高了共混物中β晶型的相对含量.

关键词: 聚异戊二烯, 双组分共混, 等温结晶, 非等温结晶

Abstract:

Isothermal and non-isothermal crystallization kinetics of cis-1,4-polyisoprene(CPI)/trans-1,4-polyisoprene(TPI) binary blends were investigated by differential scanning calorimetry method. The results were analyzed by Avrami equation and MO theory. It was found that the presence of CPI suppressed the crystallization rate of TPI component during both isothermal and non-isothermal crystallization. The crystallinity of TPI component was enhanced by CPI during the isothermal crystallization. For non-isothermal crystallization, the relative content of β crystal form increased, while the crystallinity of TPI component changed little with the incorporation of CPI component.

Key words: Polyisoprene, Binary blend, Isothermal crystallization, Non-isothermal crystallization

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