高等学校化学学报 ›› 2004, Vol. 25 ›› Issue (10): 1966.

• 研究快报 • 上一篇    下一篇

聚乙二醇单甲醚(MPEG)/聚乙烯醇(PVA)高分子固-固相变材料的合成与性能

张梅, 马荣堂, 姜振华   

  1. 吉林大学化学学院, 长春130023
  • 收稿日期:2004-02-17 出版日期:2004-10-24 发布日期:2004-10-24
  • 基金资助:

    国家自然科学基金(批准号:50203004)资助

Synthesis and Properties of Poly(vinyl alcohol)-g-poly (ethylene glycol)Monomethyl Ether Polymeric Solid-solid Phase Change Material

ZHANG Mei, MA Rong-Tang, JIANG Zhen-Hua   

  1. College of Chemistry, Jilin University, Changchun 130023, China
  • Received:2004-02-17 Online:2004-10-24 Published:2004-10-24

关键词: 固-固相变, 接枝共聚, 结晶

Abstract: The soluble poly(vinyl alcohol)-g-poly(ethylene glycol) monomethyl ether(PVA-g-MPEG) graft copolymer was prepared by two-step synthesis. The structure of the PVA-g-MPEG was characterized by 1H NMR. The phase change and crystallization behavior were analyzed by DSC and POM. The phase change behavior presented solid-to-solid state; the phase transition process was reversible. Compared with pure MPEG, the phase change temperature and enthalpy of graft copolymer declined because of the addition of PVA. Due to the intermolecular interaction and chemical bond, the crystalline shape of the graft copolymer was changed.

Key words: Solid-solid phase change, Graft copolymer, Crystallization

中图分类号: 

TrendMD: