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  

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

作　　者：张梅[1] 马荣堂[1] 姜振华[1] 

机构地区：[1]吉林大学化学学院,长春130023

出　　处：《高等学校化学学报》2004年第10期1966-1968,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :5 0 2 0 3 0 0 4)资助

摘　　要：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.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.

关 键 词：聚乙二醇单甲醚 聚乙烯醇 高分子固-固相转变材料 溶解性 交联网络结构 接枝共聚 

分 类 号：TB34[一般工业技术—材料科学与工程] TB324