Structure of water incorporated in amphoteric polymer thin films as revealed by FT-IR spectroscopy

Hiromi Kitano, Kyoko Nagaoka, Susumu Tada, Makoto Gemmei-Ide, Masaru Tanaka

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


The structure and hydrogen bonding of water incorporated in a thin film of amphoteric terpolymers composed of various ratios of MA, DMAPMA, and BMA were analyzed using the band shapes of the O-H stretching in the IR spectra. At an early stage of sorption of water, the IR spectrum for the water incorporated in the film with comparative contents of MA and DMAPMA residues was similar to that for free water. This is consistent with the tendency for zwitterionic polymers, but is in contrast with the drastic change in the IR spectrum of water incorporated in non-ionic polymer films such as polyBMA. These results suggest a correlation between the mildness of the charge-balanced polymers to the structure of incorporated water and their blood compatibilities. (Table Presented)

Original languageEnglish
Pages (from-to)77-85
Number of pages9
JournalMacromolecular Bioscience
Issue number1
Publication statusPublished - Jan 9 2008
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Biomaterials
  • Polymers and Plastics
  • Materials Chemistry


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