高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (5): 511.

• 研究论文 • 上一篇    下一篇

苯乙烯-丙烯酸钠共聚物改性PET结晶行为的研究

王铁军1, 杨昌正1, 戴庆平2   

  1. 1. 南京大学化学系;
    2. 南京大学现代分析中心
  • 收稿日期:1987-09-15 出版日期:1989-05-24 发布日期:1989-05-24
  • 通讯作者: 杨昌正

The Crystallization Behaviour of Poly(Styrene- CO-Sodium Acrylate) Modified Poly- (Ethylene Terephthalate)

Wang Tiejun1, Yang Changzheng1, Dai Qingping2   

  1. Department of Chemistry, Nanjing University, Nanjing
  • Received:1987-09-15 Online:1989-05-24 Published:1989-05-24

PDF (PC)

被引次数

15

摘要： 本文用DSC和FT-IR方法研究了PET/苯乙烯-丙烯酸钠共聚物共混体系的相溶性、等温结晶动力学、组成、温度等因素对结晶速率、结晶度等结晶行为的影响,并初步探讨了离聚物对PET的作用。

关键词: 苯乙烯-丙烯酸钠共聚物, 聚对苯二甲酸乙二醇酯, 结晶行为

Abstract: The miscibility and crystallization behaviour of blends of poly (ethylenc terephthalate) with poly(styrene-co-sodium acrylate) (ST-SA) were investigated by using DSCand FT-IRtechniques. The ionomer ST-SAwas found to have both nucleating and blending effects on PET. Not only the ionomer accelerated the crystallization of PET, but also improved the miscibility, forming a partial miscible two-phase system in the amorphous phase, Crystallinity data from both DSCand FT-IRmeasurements showed that the crystallinity of PETwas almost not affected by blending of the poly (styrene-co-sodium acrylate) at the equilibrium state. Avrami plot indicated that the secondary crystallization increased with the increase of the content of poly (styrene-co-sodium acrylate) in comparison with pure PET.

Key words: Poly(styrene-co-sodium acrvlatc), Poly(Ethylcnc teivphthalatc), Crystallization behaviour

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