| Effect of catalyst on formation of poly（methyl methacrylate） brushes by surface initiated atom transfer radical polymerization |
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| 作者姓名： | 刘辉, 周晚珠, 叶红齐, 韩凯, 侯世川, 张欣悦 |
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| 作者单位： | [1]College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; [2]Key Laboratory of Resource Chemistry of Nonferrous Metals of Ministry of Education, (Central South University), Changsha 410083, China; [3]State Key Laboratory for Powder Metallurgy (Central South University), Changsha 410083, China |
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| 基金项目： | Project（21376271） supported by the National Natural Science Foundation of China; Project（2013） supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, China; Projects（CL12129, 201310533008） supported by the Undergraduates Innovative Training Foundation of Central South University, China; Project（Z 12060） supported by the Undergraduate Free Exploration Innovation Foundation of Central South University, China; Project（CSUZC2013008） supported by the Open-End Fund for the Valuable and Precision instruments of Central South University, China |
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| 摘 要： | Poly （methyl methacrylate） （PMMA） brushes were synthesized from silicon wafers via surface initiated atom transfer radical polymerization （SI-ATRP）. Energy disperse spectroscopy （EDS） and atomic force microscopy （AFM） confirmed that PMMA brushes were successfully prepared on the silicon wafers, and the surface became more hydrophobic according to the contact angle of 69~. It is found that CuCI/1, 1, 4, 7, 10, 10-hexamethyl triethylenetetramine （HMTETA） system is more suitable than CuBr/N, N, N′, N″, N′″-pentamethyl diethylenetriamine （PMDETA） system to control the free radical polymerization of MMA in solution. Nevertheless, better control on the thickness of PMMA brushes was achieved in CuBr/PMDETA than in CuC1/HMTETA due to higher activity and better reversibility of the former system.
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| 关 键 词： | 聚(甲基丙烯酸甲酯) 原子转移自由基聚合 表面 引发 聚甲基丙烯酸甲酯 催化剂 自由基聚合反应 电刷 |
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