Solventless grafting of functional polymer coatings onto Parylene C
Solventless grafting of functional polymer coatings onto Parylene C
复制标题
功能性聚合物涂层无溶剂接枝到聚对二甲苯 C 上
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Malancha Gupta
中科院分区：
文献类型：
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作者：
M. D. Luna;Benny Chen;Laura C. Bradley;R. Bhandia;Malancha Gupta
在这项工作中，作者研究了使用气相沉积将功能性聚合物涂层共价连接到Parylene C上。Parylene C由于其惰性和生物相容性而对几种生物医学应用很重要;然而，表面性质并不理想。作者使用分步程序对Parylene C的表面性质进行了改性，其中首先使用光引发剂将交联锚定层共价连接到Parylene C表面，然后使用热引发剂将官能单体交联到交联锚定层上。该方法具有几个优点，因为在聚合过程中不使用溶剂。通过沉积聚（乙烯基吡咯烷酮）和聚（邻硝基苄基甲基丙烯酸酯）作为功能聚合物，证明了该程序的一般性。耐久性测试表明，在甲醇中超声处理或在磷酸盐中长期浸泡后，涂层的功能性或元素组成没有损失。
In this work, the authors studied the use of vapor phase deposition to covalently attach functional polymer coatings onto Parylene C. Parylene C is important for several biomedical applications due to its inertness and biocompatibility; however, the surface properties are not ideal. The author modified the surface properties of Parylene C using a stepwise procedure in which a photoinitiator was first used to covalently attach a cross-linked anchoring layer to the Parylene C surface and then a thermal initiator was used to polymerize functional monomers onto the cross-linked anchoring layer. This process has several benefits because no solvents are used during the polymerization process. The generality of this procedure was demonstrated by depositing poly(vinyl pyrrolidone) and poly(ortho-nitrobenzyl methacrylate) as the functional polymers. Durability testing showed no loss in functionality or change in the elemental composition of the coating after sonication in methanol or long-term soaking in phosphate...