Studies on polyethylene oxide and phenolic resin blends

Debdatta Ratna, T. N. Abraham, J. Karger-Kocsis

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Blends of polyethylene oxide) (PEO) and novolac type phenolic resin were prepared by a solution cast method using acetonitrile as a solvent. In this work, we have investigated the PEO/phenolic blends having low phenolic content (0 to 30 wt %) with the objective in mind to design a crystallizable component for a shape memory polymer system having adjustable switching temperature. The blends were characterized by Fourier transform infrared (FTIR) spectroscopy, polarized optical microscopy (POM), and differential scanning calorimetry (DSC). The rate of crystallization and crystallinity (calculated from heat of crystallization value) decrease with increase in novolac content. FTIR analysis indicates the existence of H-bonding between hydroxyl groups of novolac and ether groups of PEO. POM studies indicate that size of Maltese cross section decreases with increase in novolac content and in the blends containing higher novolac content less regular leaf like texture was obtained.

Original languageEnglish
Pages (from-to)2156-2162
Number of pages7
JournalJournal of Applied Polymer Science
Volume108
Issue number4
DOIs
Publication statusPublished - May 15 2008

Keywords

  • Blends
  • DSC
  • Novolac
  • Optical microscopy
  • Poly(ethylene oxide)

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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