| 不同链长二元混合自组装薄膜的制备及其微观摩擦性能研究 |
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| 引用本文： | 刘蕾,宋仕永,张平余.不同链长二元混合自组装薄膜的制备及其微观摩擦性能研究[J].物理化学学报,2012,28(2):427-432. |
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| 作者姓名： | 刘蕾 宋仕永 张平余 |
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| 作者单位： | 1. Institute of Pharmaceutics, Pharmaceutical College, Henan University, Kaifeng 475004, Henan Province, P. R. China;
2. Key Laboratory for Special Functional Materials, Ministry of Education, Kaifeng 475004, Henan Province, P. R. China |
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| 基金项目： | 国家自然科学基金(51005057)资助项目~~ |
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| 摘 要： | 采用分步组装的方法,将正己酰氯、正癸酰氯、正十四碳酰氯和硬脂酰氯按不同比例混合,接枝到3-(三甲氧基硅烷基)丙基乙烯基二胺(DA)氨基自组装膜表面,制备出一系列不同链长二元混合自组装薄膜;通过调节溶液中二元组分的相对比例,得到一系列不同厚度和不同表面润湿性的纳米有机薄膜;对薄膜进行了接触角测量、椭圆偏光测厚以及原子力形貌分析,并用摩擦力显微镜考察了其摩擦学性能.没有发现相分离现象,而且研究发现,随着长碳链分子所占比例的增大,薄膜的致密度增加,表面疏水性能增强,微观摩擦系数也随之减小.
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| 关 键 词： | 自组装薄膜 微观摩擦力 混合薄膜 接触角 椭圆偏光厚度 原子力显微镜 |
| 收稿时间： | 2011-08-29 |
| 修稿时间： | 2011-11-21 |
Preparation and Micro-Tribological Study on Dually Mixed Self-Assembled Monolayers |
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| LIU Lei,SONG Shi-Yong,ZHANG Ping-Yu.Preparation and Micro-Tribological Study on Dually Mixed Self-Assembled Monolayers[J].Acta Physico-Chimica Sinica,2012,28(2):427-432. |
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| Authors: | LIU Lei SONG Shi-Yong ZHANG Ping-Yu |
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| Institution: | 1. Institute of Pharmaceutics, Pharmaceutical College, Henan University, Kaifeng 475004, Henan Province, P. R. China;
2. Key Laboratory for Special Functional Materials, Ministry of Education, Kaifeng 475004, Henan Province, P. R. China |
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| Abstract: | A series of dually mixed self-assembled monolayers were prepared by a simple step-by-step method.Four carbonyl chlorides with different chain lengths were selected and assembled onto a N-3-(trimethoxylsilyl)propyl] ethylene diamine self-assembled monolayer.Different mixed films were obtained by controlling the ratio of co-deposited carbonyl chlorides.The structures of the films were characterized by measuring their contact angles,ellipsometric thickness,and atomic force microscopy.No phase separation was observed in the mixed films.Micro-tribological studies were also carried out on the films.It was found that frictional coefficients decreased as the ratio of the longer component was increased. |
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| Keywords: | Self-assembled monolayer Micro-tribology Mixed film Contact angle Ellipsometirc thickness Atomic force microscopy |
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