Barroso-Bujans Fabienne, Fierro José L G, Veith Michael
Institute for Inorganic Chemistry, Saarland University, 66041 Saarbruecken, Germany.
J Colloid Interface Sci. 2007 Oct 1;314(1):160-6. doi: 10.1016/j.jcis.2007.05.054. Epub 2007 Jul 3.
Polymers were grafted on aluminum surfaces in order to modify the chemical and physical properties of the interface. The properly cleaned and activated surface of the aluminum substrate was first "silanized" either with 3-(trimethoxysilyl)propylamine or allyltrimethoxysilane. The grafting was carried out following two methods: (i) by the reaction of preformed poly(methyl vinyl ketone) with the aminosilane-modified surface; and (ii) by polymerization of methyl vinyl ketone with the vinylsilane-modified surface. The modified aluminum surfaces were characterized by X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, and energy dispersive X-ray spectroscopy. The new surfaces were examined by contact-angle measurements, and determinations of the Lewis basicity.
为了改变界面的化学和物理性质，聚合物被接枝到铝表面。首先，用3-(三甲氧基甲硅烷基)丙胺或烯丙基三甲氧基硅烷对经过适当清洁和活化的铝基底表面进行“硅烷化”处理。接枝过程采用两种方法进行：(i) 通过预制的聚(甲基乙烯基酮)与氨基硅烷改性表面的反应；(ii) 通过甲基乙烯基酮与乙烯基硅烷改性表面的聚合反应。通过X射线光电子能谱、傅里叶变换红外光谱、扫描电子显微镜和能量色散X射线光谱对改性铝表面进行了表征。通过接触角测量和路易斯碱度测定对新表面进行了检测。
