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자연과학대학
화학·나노과학전공
Journal papers
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Thermal/oxidative degradation and stabilization of polyethylene glycol
Title
Thermal/oxidative degradation and stabilization of polyethylene glycol
Authors
Han S.
;
Kim C.
;
Kwon D.
Ewha Authors
권동숙
SCOPUS Author ID
권동숙
Issue Date
1997
Journal Title
Polymer
ISSN
0032-3861
Citation
Polymer vol. 38, no. 2, pp. 317 - 323
Indexed
SCI; SCIE; SCOPUS
Document Type
Article
Abstract
Thermal degradation and stabilization of polyethylene glycol (PEG) with a molecular weight of 6000 have been investigated in order to develop PEG as a thermal energy storage material. Low molecular weight esters including formic esters were produced as the main products of the thermal degradation of PEG at 80 C in air. No degradation was observed for PEG aged in a vacuum. The mechanism of thermal degradation is found to be the random chain scission of the main chain. Thermal degradation could be suppressed by adding 2,2′-methylene-bis(4-methyl-6-tert-butylphenol) (MBMTBP) as an antioxidant. In the stabilizing process. MBMTBP itself is transformed to dimers or trimers. Copyright © 1996 Elsevier Science Ltd.
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