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利用等离子体表面接枝改性方法在聚对苯二甲酸乙二醇酯(polyethylene terephthalate,PET)材料表面接枝不同分子量的聚乙二醇(PEG),体外血液相容性实验表明,接枝了PEG的PET材料的血液相容性与PEG的分子量有关;当接枝的PEG分子量达到6000时,材料的血液相容性最好.

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