Thermal degradation of poly(ethyleneglycol)

Seongok Han, Chongyoup Kim, Dongsook Kwon

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

The thermal degradation of poly(ethyleneglycol) (PEG) with an average molecular weight of 4000 has been investigated from the point of view of developing PEG as a phase change material in thermal energy storage. The PEG was maintained at 80 °C for 1000 h in air and in vacuo. It was severely degraded in air; the melting point and heat of fusion were reduced by as much as 13 °C and 32 kJ/kg, respectively. In vacuo, however, almost no degradation was observed. Both the fresh and degraded PEG samples were examined by thermal and spectroscopic methods. The results suggest that the thermal degradation of PEG in air follows a random chain scission oxidation mechanism. This was confirmed by adding an antioxidant which successfully suppressed the degradation.

Original languageEnglish
Pages (from-to)203-208
Number of pages6
JournalPolymer Degradation and Stability
Volume47
Issue number2
Publication statusPublished - 1995 Dec 1
Externally publishedYes

Fingerprint

thermal degradation
Polyethylene glycols
Pyrolysis
air
degradation
heat of fusion
heat storage
phase change materials
antioxidants
Air
melting points
cleavage
molecular weight
Degradation
Phase change materials
oxidation
Thermal energy
Antioxidants
Energy storage
Melting point

ASJC Scopus subject areas

  • Organic Chemistry
  • Mechanics of Materials
  • Materials Chemistry
  • Polymers and Plastics
  • Condensed Matter Physics

Cite this

Thermal degradation of poly(ethyleneglycol). / Han, Seongok; Kim, Chongyoup; Kwon, Dongsook.

In: Polymer Degradation and Stability, Vol. 47, No. 2, 01.12.1995, p. 203-208.

Research output: Contribution to journalArticle

Han, S, Kim, C & Kwon, D 1995, 'Thermal degradation of poly(ethyleneglycol)', Polymer Degradation and Stability, vol. 47, no. 2, pp. 203-208.
Han, Seongok ; Kim, Chongyoup ; Kwon, Dongsook. / Thermal degradation of poly(ethyleneglycol). In: Polymer Degradation and Stability. 1995 ; Vol. 47, No. 2. pp. 203-208.
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