Polystyrene formation on monolayer-modified nitinol effectively controls corrosion.
Polystyrene formation on monolayer-modified nitinol effectively controls corrosion.
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DOI：
10.1021/la801906e
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发表时间：
2008-09
期刊：
影响因子：
--
通讯作者：
Rosalynn Quiñones;E. Gawalt
中科院分区：
文献类型：
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作者：
Rosalynn Quiñones;E. Gawalt
利用苯乙烯在羧酸封端的膦酸单分子膜上的表面引发聚合来增加镍钛诺和氧化镍表面的耐腐蚀性。通过红外光谱、原子力显微镜、基质辅助激光解吸电离光谱和水接触角测定了单分子膜和聚合物的烷基链有序性、有机反应、润湿性和膜质量。循环伏安法和电化学阻抗谱分析表明，聚苯乙烯膜比膦酸单分子膜具有更好的防腐蚀性能。聚苯乙烯薄膜对镍钛合金的保护效率为99.4%，单层为42%。
A surface-initiated polymerization of styrene on carboxylic acid terminated phosphonic monolayers was utilized to increase the corrosion resistance of nitinol and nickel oxide surfaces. Alkyl chain ordering, organic reactions, wettability, and film quality of the monolayers and polymers were determined by infrared spectroscopy, atomic force microscopy, matrix-assisted laser desorption ionization spectrometry, and water contact angles. The polystyrene film proved to be a better corrosion barrier than phosphonic acid monolayers by analysis with cyclic voltammetry and electrochemical impedance spectroscopy. The protection efficiency of the polystyrene film on nitinol was 99.4% and the monolayer was 42%.