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Synthesis and characterization of polyurethane elastomers based on chitosan and poly(ε‐caprolactone)
Author(s) -
Barikani Mehdi,
Honarkar Hengameh,
Barikani Majid
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.29711
Subject(s) - isophorone diisocyanate , crystallinity , chitosan , materials science , polyurethane , thermal stability , polycaprolactone , caprolactone , polymer chemistry , diol , elastomer , fourier transform infrared spectroscopy , polymer , chemical engineering , dynamic mechanical analysis , composite material , polymerization , engineering
Biodegradable polyurethane (PU) elastomers with potential for biomedical and industrial applications were synthesized by the reaction of poly(ε‐caprolactone) (PCL) and isophorone diisocyanate (IPDI), extended with different mass ratio of chitosan and 1,4‐butane diol (BDO). Their chemical structures were characterized using FTIR, 1 HNMR, and 13 CNMR, and thermal properties were determined by TGA and DMTA. Incorporation of chitosan contents into the polyurethane backbone caused improvement in thermal stability and thermal degradation rate. Optimum thermal properties and degradation profile were obtained from elastomer extended with chitosan. The crystallinity and hydrophilicity of the prepared polymers were also examined by X‐ray and contact angle measurements. The results showed that hydrophilicity decreased and crystallinity increased with increasing of chitosan content in polyurethane backbone. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009