Synthesis and Characterization of Biomedical Aliphatic Polyurethane Material

Abstract:

Biomedical transparent poly(carbonate-urethane) elastomers were synthesized by melting pre-polymer method, using 4,4’-methylenebis (cyclohexyl isocyanate)(H12MDI) and chain extender (butadiene)(BDO) as hard segment, poly(1,6-hexanediol) carbonate diols(PCDL) as soft segment, and dibutyltin dilaurate as catalyst.The effects of molar ratio of the reactants on mechanical properties of PCU were studied and the relationship between micro-phase separation structure and properties was analyzed by the contact angle determination, total reflection fourier transform infrared spectrography(ATR-FTIR), differential scanning calorimeter(DSC),gel permeation chromatograph (GPC), mechanical property test. The comparative analysis was made between the prepared material and commercial medical polyurethane materials, showing the prepared poly(carbonate-urethane) elastomers was better in mechanical properties. As a elastic biomedical material, it has a great potential for developments and applications in biomedical materials.

• Periodical: Materials Science Forum (Volumes 809-810)
• Pages: 520-526
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.809-810.520
• Online since: December 2014
• Authors: Rong Zhu, Zong Rui Zhang, Ming Bei Zhu, Xin Yu Wang*
• Keywords: 4,4’-methylenebis(cyclohexyl isocyanate), Biomedical Material, Mechanical Property, Poly(carbonate-urethane)

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