title: Blood compatible phospholipid-containing polyurethanes: synthesis characterization and blood compatibility evaluation.
abstract: A new diol, bis[2-(2-hydroxyethyldimethylammonio)ethyl] butylenediphosphate, that contains two phosphatidylcholine analogous moieties in one diol molecule, was synthesized and characterized. The diol together with 1,4-butanediol as chain extender was further incorporated into the propolymer of poly(ethylene oxide) (Mn = 1000, 2000, 6000) and 4,4'-methylenediphenyl diisocyanate. The resulting phospholipid poly(ether urethane)s show viscosity behavior of common polyelectrolytes. The bulk and surface characteristics of the new phospholipid poly(ether urethane)s were investigated by IR, GPC, ATR-FTIR, ESCA and contact angle measurements. The new polymers possessed relatively hydrophilic surface revealed by contact angle measurements. The blood compatibilities of the polyurethanes were evaluated by platelet rich plasma contacting studies and scanning electron microscopy observation using medical grade PVC as the reference. No platelet adhesion was observed for all new phospholipid polyurethane casting films. This new type of phospholipid polyurethane is expected to have potential biomedical applications.
authors.affiliation: Department of Bioapplied Chemistry, Faculty of Engineering, Osaka City University, Japan. yujun@bioa.eng.osaka-cu.ac.jp
authors.forename: Y J
authors.initials: YJ
authors.lastname: Li
authors.forename: T
authors.initials: T
authors.lastname: Nakaya
authors.forename: Z
authors.initials: Z
authors.lastname: Zhang
authors.forename: M
authors.initials: M
authors.lastname: Kodama
mesh_terms: D000818:Animals; D001672:Biocompatible Materials / Q000032:analysis / Q000138:chemical synthesis / Q000737:chemistry*; D001769:Blood; D001792:Blood Platelets / Q000502:physiology; D002072:Butylene Glycols / Q000737:chemistry; D002850:Chromatography, Gel; D004573:Electrolytes / Q000737:chemistry; D005069:Evaluation Studies as Topic; D017953:Isocyanates / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008855:Microscopy, Electron, Scanning; D010713:Phosphatidylcholines / Q000737:chemistry; D010743:Phospholipids / Q000032:analysis / Q000138:chemical synthesis / Q000737:chemistry*; D010973:Platelet Adhesiveness; D011092:Polyethylene Glycols / Q000737:chemistry; D011140:Polyurethanes / Q000032:analysis / Q000138:chemical synthesis / Q000737:chemistry*; D011143:Polyvinyl Chloride / Q000737:chemistry; D011817:Rabbits; D013055:Spectrophotometry, Infrared; D017550:Spectroscopy, Fourier Transform Infrared; D013057:Spectrum Analysis; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry; D014783:Viscosity; D017155:Wettability; D001559:Benzhydryl Compounds
chemical_list: D001672:Biocompatible Materials; D002072:Butylene Glycols; D004573:Electrolytes; D017953:Isocyanates; D010713:Phosphatidylcholines; D010743:Phospholipids; D011092:Polyethylene Glycols; D011140:Polyurethanes; D011143:Polyvinyl Chloride; D013501:Surface-Active Agents; C104742:poly(etherurethane urea); C039681:1,4-butanediol; C005969:4,4'-diphenylmethane diisocyanate; D001559:Benzhydryl Compounds