| Zno纳米粒子在PS中空微反应器中的合成与光学性能 |
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| 引用本文： | 黄学凤,琚飞飞,汪谟贞,葛学武.Zno纳米粒子在PS中空微反应器中的合成与光学性能[J].化学物理学报,2012,25(6):719-724. |
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| 作者姓名： | 黄学凤 琚飞飞 汪谟贞 葛学武 |
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| 作者单位： | 中科院软物质化学重点实验室，中国科学技术大学高分子材料科学与工程系，合肥230026;中科院软物质化学重点实验室，中国科学技术大学高分子材料科学与工程系，合肥230026;中科院软物质化学重点实验室，中国科学技术大学高分子材料科学与工程系，合肥230026;中科院软物质化学重点实验室，中国科学技术大学高分子材料科学与工程系，合肥230026 |
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| 摘 要： | 通过种子乳液聚合合成核壳结构的聚甲基丙烯酸甲酯/聚苯乙烯(PMMA/PS)复合微球，通过酸碱溶胀法进一步制备出次微米级的PS中空微球. 将此中空微球作为微反应器，使在ZnO纳米粒子前驱体溶液中溶胀， 最终ZnO纳米粒子在PS中空微球中原位生成. 实验表明， 组成ZnO纳米粒子前驱体溶液的两种组
分(CH3COO)2Zn和LiOH的滴加顺序不同对最终生成的ZnO纳米粒子的尺寸和负载效率有很大的影响，但并不改变ZnO纳米粒子的晶型. 复合物的光致发光和UV-Vis吸
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| 关 键 词： | ZnO/PS复合材料，核壳结构聚合物微球 溶胀，PS中空微球，发光性能 |
| 收稿时间： | 2012/10/18 0:00:00 |
Synthesis and Optical Properties of ZnO Nanoparticles in Submicron PS Hollow Reactors |
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| Xue-feng Huang,Fei-fei Ju,Mo-zhen Wang and Xue-wu Ge.Synthesis and Optical Properties of ZnO Nanoparticles in Submicron PS Hollow Reactors[J].Chinese Journal of Chemical Physics,2012,25(6):719-724. |
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| Authors: | Xue-feng Huang Fei-fei Ju Mo-zhen Wang and Xue-wu Ge |
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| Institution: | CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China;CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China;CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China;CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | ZnO nanoparticles were first encapsulated in submicron PS hollow microspheres through two-step swelling process of core-shell structured PMMA/PS (PMMA: polymethyl methao-rylate) microspheres in acid-alkali solution, and the ZnO precursors, i.e. the ethanol solu-tions of (CH3COO)2Zn and LiOH. The transmission electron microscope, X-ray diffraction, and thermogravimetric analysis results show that the feeding order of ethanol solutions of (CH3COO)2Zn and LiOH in the second swelling step has great influence on the loading efficiency and the size of ZnO nanoparticles, but little on their crystal form. The photolumi-nescence and UV-Vis absorption behavior of ZnO/PS microspheres show that the PS shell can effectively avoid the fluorescence quenching effect. |
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| Keywords: | ZnO/PS hybrid material Core-shell polymer Swelling PS hollow microsphere Optical property |
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