Physical and rheological properties of thermoplasticized crosslinked-polyethylene foam in supercritical methanol

Hang Kyu Cho, Soon Man Hong, Kyung Yeol Baek, Chong Min Koo, Hong Shik Lee, Youn Woo Lee

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The physical and rheological properties of thermoplasticized irradiation-crosslinked polyethylene foam using supercritical methanol treatment were investigated by GPC, FTIR, DSC, WAXS, DMTA and UDS. The polyethylene foam was selectively decrosslinked into thermoplasticized polyethylene in an appropriate supercritical methanol condition without any undesirable side reactions such as oxidation and disproportionation. The thermoplasticization was promoted with increasing reaction temperature to reach completion above 380°C. The supercritical reaction condition affected the crystallization behavior, and mechanical and rheological properties of the decrosslinked polyethylene foam, but not its crystallographic structure or crystallinity.

Original languageEnglish
Pages (from-to)950-955
Number of pages6
JournalMacromolecular Research
Volume17
Issue number12
DOIs
Publication statusPublished - 2009 Dec
Externally publishedYes

Keywords

  • Crosslinked polyethylene foam
  • Decrosslinking
  • Rheology
  • Supercritical methanol
  • Thermoplasticization

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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