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Properties and biocompatibility of polypropylene graft copolymer films
Author(s) -
ElRehim H. A. Abd,
ElArnaouty M. B.
Publication year - 2003
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.20013
Subject(s) - comonomer , copolymer , biocompatibility , polypropylene , materials science , grafting , chemical engineering , solvent , polymer chemistry , monomer , polymer , elongation , adsorption , composite material , chemistry , ultimate tensile strength , organic chemistry , engineering , metallurgy
Modifying the surfaces of polymers has received a great deal of attention, because it could bring about specific surface characteristics such as antithrombogenic property. Therefore, N‐vinyl pyrrolidone/sodium acrylate (NVP/Na‐AAc) binary monomers were introduced onto polypropylene (PP) films by a radiation grafting method. The effect of solvent and comonomer composition on the degree of grafting was determined. Studies of the mechanical properties and water content of such graft copolymers showed that as the grafting yield increases the elongation percent decreases. However, the water content increases with increasing grafting yield. The blood compatibility of the original PP and PP‐g–NVP/Na‐AAc films was evaluated by determination of the extent of platelet adsorption and thrombus formation. The blood compatibility of PP‐g–NVP/Na‐AAc seems to be better than that of original PP. © 2003 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 68B: 209–215, 2004