Cold crystallization of water in hydrated poly(2-methoxyethyl acrylate) (PMEA)

Masaru Tanaka, Tadahiro Motomura, Naoki Ishii, Kenichi Shimura, Makoto Onishi, Akira Mochizuki, Tatsuko Hatakeyama

Research output: Contribution to journalArticle

111 Citations (Scopus)

Abstract

The structure of water associated with poly(2-methoxyethyl acrylate) (PMEA), which is known to exhibit excellent blood compatibility, has been investigated using differential scanning calorimetry (DSC). The total equilibrium water content (EWC) of PMEA was 9.0wt%. Water in the PMEA could be classified into three types: non-freezing, freezing-bound and free water. Cold crystallization of water was clearly observed at about -42°C on heating when the water content was more than 3.0wt%. Cold crystallization is attributed to the phase transition from the amorphous ice to the crystal ice in PMEA. The relative proportions of freezing-bound water at the EWC is 48% of all the water in hydrated PMEA.

Original languageEnglish
Pages (from-to)1709-1713
Number of pages5
JournalPolymer International
Volume49
Issue number12
DOIs
Publication statusPublished - Dec 1 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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