Synthesis of hydrolytically stable low elastic modulus polyurethane-urea for biomedical applications
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Date
2000
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Volume Title
Publisher
POLYMER INTERNATIONAL
Abstract
Polyurethane-urea without ether linkages was synthesised using dicyclohexyl-methane diisocyanate (SMDI), hydroxy-terminated polybutadiene (HTPBD) and m-phenylenediamine (PDA). The hydrolytic stability of this polymer was investigated under in vitro conditions using Ringer's solution and phosphate-buffered saline, and the stability of candidate polyurethane-urea polymers was compared with that of polyurethane prepared with SMDI, HTPBD and I,4-butanediol [BD]. The change of tensile properties, hardness and surface properties in the aged polymer is significant for polyurethane when compared with those of polyurethane-urea polymer. The in vitro study revealed possible applications of polyurethane-urea for long-term biomedical applications. (C) 2000 Society of Chemical Industry.
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Polymer Science
Citation
49 ,1;88-92