Polymer Bulletin

, Volume 41, Issue 5, pp 553-559

Blend of chitosan acetate salt with poly(N-vinyl-2-pyrrolidone): Interaction between chain-chain

  • Shuguang CaoAffiliated withInstitute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P.R. China
  • , Yanqiao ShiAffiliated withInstitute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P.R. China
  • , Guanwen ChenAffiliated withInstitute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P.R. China

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SUMMARY:

Clear blends of chitosan acetate salt with poly (N-vinyl-2-pyrrolidone) (PVP) made from aqueous solutions look to be miscible on appearance. IR spectra investigated the carbonyl-hydroxyl hydrogen bonding between chain-chain in the blends and thus evidenced the compatibility of two polymers on a molecular level. The IR spectra, DSC also explored the interaction changing during the temperature increasing and indicated that a significant conformational change took place.