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

Abstract

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

CLC Number:

O631

TrendMD:

ZHANG Mei, MA Rong-Tang, JIANG Zhen-Hua . Synthesis and Properties of Poly(vinyl alcohol)-g-poly (ethylene glycol)Monomethyl Ether Polymeric Solid-solid Phase Change Material[J]. Chem. J. Chinese Universities, 2004, 25(10): 1966.

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

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