采用偶联剂对纳米SiO2粒子表面进行处理,将原子转移自由基聚合(ATRP)引发剂引入到SiO2粒子表面合成大分子引发剂,通过细乳液聚合工艺制备了相对分子质量分布窄的聚合物基纳米SiO2复合乳液,利用红外光谱(FT-IR)、X射线光电子能谱(XPS)和凝胶色谱(GPC)等对复合乳液粒子及表面接枝聚苯乙烯进行了表征分析.结果表明:聚合物的相对分子质量在反应过程中随单体转化率的增大呈线性增长趋势,相对分子质量分布较窄(Mw/Mn=1.34),接枝在纳米SiO2粒子表面聚苯乙烯的分子大小比较均匀;TEM和SEM观察表明:通过合成复合乳液使纳米SiO2粒子在涂膜中达到均匀的单分散状态;所合成的纳米复合粒子在功能涂层材料方面具有良好的应用潜能.
参考文献
[1] | 华静,张一烽,陈滇宝.原子转移自由基聚合及其在新型高分子材料合成中的应用[J].高分子材料科学与工程,2002(05):21-25. |
[2] | Erjun Tang;Shaoying Dong .Preparation of styrene polymer/ZnO nanocomposite latex via miniemulsion polymerization and its antibacterial property[J].Colloid and polymer science,2009(9):1025-1032. |
[3] | 唐二军,赵卫利,董少英.纳米ZnO复合聚苯丙乳液的合成及其功能性研究[J].涂料工业,2009(03):53-56,72. |
[4] | Tao Wu;Yanfeng Zhang;Xiaofeng Wang .Fabrication of Hybrid Silica Nanoparticles Densely Grafted with Thermoresponsive Poly(N-isopropylacrylamide) Brushes of Controlled Thickness via Surface-Initiated Atom Transfer Radical Polymerization[J].Chemistry of Materials: A Publication of the American Chemistry Society,2008(1):101-109. |
[5] | Erjun Tang;Guoxiang Cheng;Xingshou Pang;Xiaolu Ma;Fubao Xing .Synthesis of nano-ZnO/poly(methyl methacrylate)composite microsphere through emulsion polymerization and its UV-shielding property[J].Colloid and polymer science,2006(4):422-428. |
[6] | Jin-Shan Wang;Krzysztof Matyjaszewski .Controlled/'Living' Radical Polymerization. Atom Transfer Radical Polymerization in the Presence of Transition-Metal Complexes[J].Journal of the American Chemical Society,1995(20):5614-5615. |
[7] | Lilin Zhou;Weizhong Yuan;Jinying Yuan;Xiaoyin Hong .Preparation of double-responsive SiO_2-g-PDMAEMA nanoparticles via ATRP[J].Materials Letters,2008(8/9):1372-1375. |
[8] | CHIEFARI J;CHONG Y K;ERCOLE F .Living free radical polymerization by reversible addition fragmentation chain transfer[J].Macromolecules,2008,31:5559-5562. |
[9] | RANGANATHAN K;KALATHUR S .Controlled "living" atrom transfer radical polymerization of methyl methacrylate in the synthesis of triblock copolymers from a poly (oxyethylene) macroinitiator[J].European Polymer Journal,2003,39:205-210. |
[10] | TANG E J;CHENG G X;MAX L .Preparation of nano-ZnO/PM-MA composite particles via grafting of the copolymer onto the surface of Zinc oxide nanoparticles[J].Powder Technology,2006,161(01):209-214. |
[11] | 唐二军.建筑外墙涂料用纳米ZnO/PMMA复合乳液的合成[J].现代涂料与涂装,2008(11):21-24,29. |
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