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Indexed by:期刊论文

Date of Publication:2012-07-13

Journal:Advanced Materials Research

Included Journals:EI、CPCI-S、SCIE、Scopus

Volume:557-559

Page Number:1192-1196

ISSN No.:9783037854570

Key Words:SMA-g-PEG; Form-stable phase change material; Heat storage

Abstract:Novel polymeric form-stable phase change material (SMA-g-PEG) was synthesized by the reaction of styrene-maleic anhydride copolymer (SMA) with polyethylene glycol (PEG). The phase transition behaviors and crystalline morphology were investigated by DSC and WAXD, and thermal stability was analyzed by TGA. The results indicated that the SMA-g-PEG has suitable transition temperature, high transition enthalpy and good thermal stability. The heat storage mechanism of SMA-g-PEG is the transfer between crystalline and amorphous states of the hanging segment PEG. And SMA, serving as 'polymeric bone', restricts the molecular chain of the hanging segment's free movement at high temperature, so, SMA-g-PEG can keep its solid state in the transition processing.