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首页> 外文期刊>Applied Surface Science >Polypropylene modified with 2-hydroxyethyl acrylate-g-2-methacryloyloxyethyl phosphorycholine and its hemocompatibility
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Polypropylene modified with 2-hydroxyethyl acrylate-g-2-methacryloyloxyethyl phosphorycholine and its hemocompatibility

机译：丙烯酸2-羟乙酯-g-2-甲基丙烯酰氧基乙基磷胆碱改性的聚丙烯及其血液相容性

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摘要

Polypropylene (PP) was modified with 2-hydroxyethyl acrylate (HEA) by solution radical grafting to introduce active hydroxyl groups on polypropylene backbone (PP-g-HEA). Then the biomimic monomer, 2-methacryloyloxyethyl phosphorycholine (MPC), was grafted onto the surface of PP-g-HEA film (PP-g-HEA-g-MPC) by redox graft polymerizations with ceric(IV) ammonium nitrate as an initiator. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) showed that the HEA and MPC were introduced onto PP molecular chains and the copolymer, PP-g-HEA-g-MPC were formed. The water contact angle measurements demonstrated that the final modified PP film exhibited a better hydrophilic surface compared to the neat PP film. The platelets adhesion on the neat PP, PP-g-HEA and PP-g-HEA-g-MPC film was examined by scanning electron microscopy (SEM). It was found that a large number of platelets were adhered and activated on the surface of neat PP and PP-g-HEA films, while the number of platelets on PP-g-HEA-g-MPC surface was decreased remarkably. The result revealed that the introduction of poly(MPC) onto the PP surface improved the hemocompatibility of PP substantially.
机译：通过溶液自由基接枝用丙烯酸2-羟乙酯（HEA）改性聚丙烯（PP），以在聚丙烯主链（PP-g-HEA）上引入活性羟基。然后通过硝酸铈（IV）铵的氧化还原接枝聚合将仿生单体2-甲基丙烯酰氧基乙基磷胆碱（MPC）接枝到PP-g-HEA膜（PP-g-HEA-g-MPC）的表面上。傅里叶变换红外光谱（FTIR）和X射线光电子能谱（XPS）表明，将HEA和MPC引入到PP分子链上，形成了共聚物PP-g-HEA-g-MPC。水接触角测量结果表明，与纯聚丙烯薄膜相比，最终的改性聚丙烯薄膜表现出更好的亲水性表面。通过扫描电子显微镜（SEM）检查纯PP，PP-g-HEA和PP-g-HEA-g-MPC膜上的血小板粘附。发现在纯PP和PP-g-HEA膜的表面上大量血小板粘附并活化，而PP-g-HEA-g-MPC表面上的血小板数目显着减少。结果表明，将聚（MPC）引入PP表面可显着改善PP的血液相容性。

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  • 来源
    《Applied Surface Science》 |2010年第23期|P.7071-7076|共6页
  • 作者

    Jie Zhao; Qiang Shi; Ligang Yin; Shifang Luan; Hengchong Shi; Lingjie Song; Jinghua Yin; Paola Stagnaro;

  • 作者单位

    State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China Graduate School of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, PR China;

    rnState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China;

    rnState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China;

    rnState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China;

    rnState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China;

    rnState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China;

    rnState Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China;

    rnIstituto per Io Studio delle Macromolecole, Consiglio Nazionale delle Ricerche, Via de Marini 6, 16149 Genova, Italy;

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  • 正文语种 eng
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  • 关键词

    hemocompatibility; redox polymerization; 2-Hydroxyethyl acrylate; 2-Methacryloyloxyethyl phosphorylcholine;

    机译：血液相容性氧化还原聚合丙烯酸2-羟乙酯;2-甲基丙烯酰氧基乙基磷酸胆碱;

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