Natural biopolymer surface of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)-photoinduced modification with triarylsulfonium salts
Natural biopolymer surface of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)-photoinduced modification with triarylsulfonium salts
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聚(3-羟基丁酸酯-co-3-羟基戊酸酯)-三芳基锍盐光诱导改性的天然生物聚合物表面
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
V. Langlois
中科院分区：
文献类型：
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作者：
D. Versace;P. Dubot;P. Cénédese;J. Lalevée;O. Soppera;J. Malval;E. Renard;V. Langlois
研究了2-羟乙基甲基丙烯酸酯（HEMA）和甲基丙烯酸（MAA）在生物可降解和生物相容性聚合物聚（3-羟基丁酸酯-co-3-羟戊酸酯）（PHBHV）上的接枝共聚反应。首次采用阳离子光引发剂六氟锑酸三芳基磺酸盐在紫外照射下在水介质中进行了一步反应。在适当的条件下，剩余的自由基从PHBHV主链中提取氢，引发PHBHV表面聚合物的uv介导接枝。这个过程提供了调整薄膜功能的机会，从而允许控制其润湿性作为辐照时间的函数。在最后的演示中，我们证明了uv介导的接枝聚合是一种有效的方法，可以在PHBHV表面上制备微图案涂层，以开发用于生物应用的微器件。
The graft copolymerization of 2-hydroxyethylmethacrylate (HEMA) and methacrylic acid (MAA) onto a biodegradable and biocompatible polymer, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV), has been investigated. The one-step process was conducted in aqueous media using for the first time a cationic photoinitiator, triarylsulfonium hexafluoroantimonate salts, upon UV irradiation. Under appropriate conditions, the remaining radicals abstract hydrogen from the PHBHV backbone which initiate the UV-mediated grafting of polymers from the PHBHV surface. This process provides the opportunity to adapt the functionality of the film, thus permitting the control of its wettability as a function of the time of irradiation. In the last demonstration, we demonstrated that UV-mediated graft polymerization is an effective method to micropattern coatings onto PHBHV surface to develop microdevices for biological applications.
全氟聚合物氧化热解产生的烟雾：ESR 自旋捕获研究。
影响因子：
4.1
作者：
Lachocki,TM;Nuggehalli,SK;Scherer,KV;Church,DF;Pryor,WA
通讯作者：
Pryor,WA