Interchain hydrogen bonds in blend films of poly(vinyl alcohol) and its derivatives with poly(ethylene oxide)

Chie Sawatari, Tetsuo Kondo

Research output: Contribution to journalArticlepeer-review

93 Citations (Scopus)

Abstract

This article proposes that, in binary blends of PEO with polymers bearing hydroxyl groups, only primary and not secondary hydroxyl groups form interchain hydrogen bonds with the skeletal ether oxygen of PEO. To prove this, PVA, propylated PVA, and two hydroxypropylated PVA derivatives-one with only secondary OH groups and the second with a mixture of primary and secondary OH groups, respectively-were used as one component which was blended with PEO in solution. The above hypothesis was confirmed for the resulting blend films using optical microscopic observations, SALS, WAXD, FTIR, and thermodynamic analyses with DSC. Curiously, this idea of selective hydrogen bonding between primary OH groups and oxygen in PEO may also be a driving force for the inclusion of PEO by α-cyclodextrin (CD) as a host-guest system since the primary OH groups at the C-6 position lie at the narrow end of the α-CD.

Original languageEnglish
Pages (from-to)1949-1955
Number of pages7
JournalMacromolecules
Volume32
Issue number6
DOIs
Publication statusPublished - Mar 23 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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