Synthesis, characterization and blood compatibility studies of biomedical aliphatic polyurethanes
Du, M.; Li, J.; Wei, Y.; Xie, X.; He, C.; Fan, C.; Zhong, Y.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 20(2): 273-276
2003
ISSN/ISBN: 1001-5515 PMID: 12856596 Document Number: 564452
The one-step method was adopted in this study to synthesize aliphatic polyurethane with 4,4-methylene dicyclohexyl diisocyanate(HMDI), 1,4-butanediol (BDO) and poly (tetrahydrofuran) (PTMG). The tests conducted on this material were: FIR spectrum, mechanical properties test, water contact angles test, hemolysis test and platelet adhesion test. Results showed that this material has a good tensile strength up to 30 Mpa, similar to aromaphatic polyurethane. But its tensile elongation, tensile permanent change, hydrophility are better than those of aromaphatic polyurethane. The hemolysis test and platelet adhesion test showed that it has good blood compatibility.