폴리에틸렌옥사이드 및 설폰산이 결합되어 혈액적합성이 개선된 개질 폴리우레탄

Enhanced Blood Compatibility of PEO-Grafted and Sulfonated Polyurethanes

  • 한동근 (한국과학기술원 고분자화학실) ;
  • 정서영 (한국과학기술원 고분자화학실) ;
  • 안광덕 (한국과학기술원 고분자화학실) ;
  • 김영하 (한국과학기술원 고분자화학실) ;
  • 김은영 (한국과학기술원 고분자화학실) ;
  • 조한익 (서울의대 임상병리과) ;
  • 민병구 (서울의대 의공학과) ;
  • 최진욱 (서울의대 의공학과)
  • 발행 : 1989.05.26

초록

Polyurethane surface was chemically modified to have different hydrophilic polyethyleneoxide(PEO)/hydrophobic dodecanediol(DDO) groups and negatively charged sulfonate group to investigate the effect to the antithrombogenicity. The hydrophilicity of the surface was significantly increased after PEO grafting or sulfonation. Lowering in-vitro platelet adhesion led to a prologation in the ex-vivo occlusion time. Especially, the sulfonated PU-PEO surface showed most enhanced blood compatibility due to the synergistic effects of PEO and $SO_3$ groups.

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