Preparation and surface characterization of functional group-grafted and heparin-immobilized polyurethanes by plasma glow discharge.

@article{Kang1996PreparationAS,
  title={Preparation and surface characterization of functional group-grafted and heparin-immobilized polyurethanes by plasma glow discharge.},
  author={Inn-Kyu Kang and Oh Hyeong Kwon and Young Moo Lee and Youn Kyoung Sung},
  journal={Biomaterials},
  year={1996},
  volume={17 8},
  pages={841-7}
}
Functional group-grafted polyurethanes were prepared by oxygen plasma discharge treatment, followed by graft polymerization of 1-acryloylbenzotriazole (AB) and a subsequent substitution reaction of AB with sodium hydroxide and ethylene diamine. The primary amine or carboxylic acid groups grafted on the surfaces were coupled with heparin using water-soluble carbodiimide. The modified surfaces were characterized by measuring the water contact angle, electron spectroscopy for chemical analysis and… CONTINUE READING
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