| 聚酰胺氨类树枝形聚合物插入式自组装膜的制备与摩擦学性能：小分子链长的影响 |
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| 引用本文： | 崔宝凤,周惠娣,张俊彦,陈建敏. 聚酰胺氨类树枝形聚合物插入式自组装膜的制备与摩擦学性能：小分子链长的影响[J]. 摩擦学学报, 2011, 31(1): 1-6 |
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| 作者姓名： | 崔宝凤 周惠娣 张俊彦 陈建敏 |
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| 作者单位： | 1. 中国科学院兰州化学物理研究所,固体润滑国家重点实验室,甘肃,兰州,730000;中国科学院,北京研究生院,北京,100049
2. 中国科学院兰州化学物理研究所,固体润滑国家重点实验室,甘肃,兰州,730000 |
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| 基金项目： | 国家自然科学基金委创新研究群体科学基金项目(50421502)和中国科学技术部（国家重点基础研究计划A1320060604） |
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| 摘 要： | 在硅基片上制备了聚酰胺氨类树枝形聚合物与不同链长的脂肪酸小分子复合自组装单层膜，用椭圆偏振光测厚仪、DSA 100接触角测量仪、X 射线光电子能谱（XPS）和原子力显微镜（AFM）对所制备的薄膜结构进行了表征，并分别考察了薄膜的纳米摩擦学性能和宏观摩擦学性能。结果表明：C18和C12成功组装到了PAMAM单层膜上PAMAM分子间的空白处。小分子的插入减小了PAMAM自组装膜表面的摩擦力和摩擦系数，提高了PAMAM自组装膜的承载能力。小分子链长的差别对复合薄膜的结构及摩擦学性能影响的差别不明显。
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| 关 键 词： | 聚酰胺氨类树枝形聚合物，脂肪酸，自组装膜，原子力显微镜，横向力显微镜 |
Preparation and Tribological Properties of Inserted PAMAM SAMs: Influence of Chain Length |
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| CUI Bao-feng,ZHOU Hui-di,ZHANG Jun-yan and CHEN Jian-min. Preparation and Tribological Properties of Inserted PAMAM SAMs: Influence of Chain Length[J]. Tribology, 2011, 31(1): 1-6 |
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| Authors: | CUI Bao-feng ZHOU Hui-di ZHANG Jun-yan CHEN Jian-min |
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| Affiliation: | 1 State Key Labaratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China,2 Graduate School of Chinese Academy of Sciences, Beijing 100039, China;State Key Labaratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;State Key Labaratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;State Key Labaratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China |
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| Abstract: | Composite self-assembled monolayers (SAMs) of poly (amide amine) generation 4.0 (PAMAM) and fatty acid on silicon were prepared. SAMs were characterized by ellipsometry, X-ray photoelectron spectroscopy and atomic force microscopy. The nano-tribological properties and micro-tribological properties were tested. Results showed that fatty acids (C18 and C12) were inserted successfully to the blank of PAMAM molecule in PAMAM SAMs. As a result, the friction force and friction coefficients of composite SAMs were decreased while the load-carrying capacity of the composite films was increased. The difference in molecular length of C18 and C12 fatty acids did not produce obvious difference in friction coefficients and load-carrying capacity |
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| Keywords: | PAMAM stearic acid SAMs AFM LFM |
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