高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (12): 2391.

• 研究快报 • 上一篇    下一篇

高压结晶PET/PC共混体系中生长在伸直链晶体内部球晶形态的观察

吕军1,魏刚2,黄锐1,李良彬1   

  1. 1.四川大学高分子科学与工程学院,成都610065;2.西华大学材料科学与工程学院,成都610039
  • 收稿日期:2005-06-20 出版日期:1905-03-14 发布日期:1905-03-14
  • 通讯作者: 黄锐(1934年出生),男,教授,博士生导师,主要从事高分子物理与高分子材料研究. E-mail:huangrui@scu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:29434010,59473002)资助.

Observation of Novel Spherulitic Morphology Formed in Extended-chain Crystals in High-pressure Crystallized PET/PC Blends

LV Jun1,WEI Gang2,HUANG Rui1*,LI Liang-Bin1   

  1. 1.College of Polymer Materials Science and Engineering,Sichuan University,Chengdu 610065,China;
    2.College of Materials Science and Engineering,Xihua University,Chengdu 610039,China
  • Received:2005-06-20 Online:1905-03-14 Published:1905-03-14
  • Contact: HUANG Rui;E-mail:huangrui@scu.edu.cn

摘要:

我们最近研究了聚对苯二甲酸乙二醇酯(PET)/双酚A型聚碳酸酯(PC)共混体系的高压结晶行为,并在其结晶样品中观察到了聚酯伸直链晶体的生成.本文提供了研究过程中发现的一类结晶形貌,表明高压条件下球晶可以生长于伸直链晶体的内部.

关键词: PET/PC共混物;高压结晶;结晶形态, PET/PC共混物, 高压结晶, 结晶形态

Abstract:

High-pressure crystallization behavior of poly(ethylene terephthalate)(PET)/biphenol-A polycarbonate(PC) blends were investigated by scanning electron microscopy(SEM) and atomic force microscopy(AFM).Two novel spherulitic structures,i.e.bamboo-shoot-like spherulite and brain-like spherulite,were observed in the polyester extended-chain crystals.The extended-chain lamellar crystal may be the substructure of these spherulites.This morphology,which is quite different from that of usual spherulite and extended-chain crystal,may promote the understanding of formation process and mechanism for both polymer spherulites and extended-chain crystals.

Key words: PET/PC blend; High-pressure crystallization; Crystal morphology, PET/PC blend, High-pressure crystallization, Crystal morphology

中图分类号: 

TrendMD: