| 陶瓷先驱体Polyvinylsilazane-b-Polystyrene的合成及纳米陶瓷颗粒的制备 |
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| 引用本文： | 邰金华,余煜玺,赖德林,许春来. 陶瓷先驱体Polyvinylsilazane-b-Polystyrene的合成及纳米陶瓷颗粒的制备[J]. 人工晶体学报, 2011, 40(5): 1266-1270 |
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| 作者姓名： | 邰金华 余煜玺 赖德林 许春来 |
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| 作者单位： | 华北水利水电学院机械学院,郑州,450011;厦门大学材料学院材料科学与工程系,厦门361005;福建省防火阻燃材料重点实验室,厦门361005;厦门大学材料学院材料科学与工程系,厦门,361005;北京航天材料及工艺研究所,北京,100076 |
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| 基金项目： | 国家自然科学基金(No.51175444); 中央高校(厦门大学)基本科研业务费专项资金(2011121002); 福建省重大平台建设基金(2009J1009) |
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| 摘 要： | 以DTBA为链转移剂,VSZ和苯乙烯为单体,通过可逆加成断裂链转移(RAFT)聚合合成了嵌段共聚物陶瓷先驱体Polyvinylsilazane-b-Polystyrene (PVSZ-b-PS).利用DLS、TEM、AFM等技术,考察了PVSZ-b-PS在选择性溶剂DMF中自组装成胶束的行为.结果表明,胶束为核-壳结构的球形,其中PVSZ为核、PS为壳,胶束直径70～110nm.PVSZ-b-PS胶束制成的聚合物膜能完整保留胶束的球形特征,800℃热解能制得直径为30～40 nm的纳米陶瓷颗粒.XRD结果表明陶瓷颗粒是SiC结晶相.
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| 关 键 词： | 嵌段共聚物 纳米颗粒 热解, |
Synthesis of Polyvinylsilazane-b-Polystyrene Ceramic Precursor and Preparation of Ceramic Nanoparticles |
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| TAI Jin-hua , YU Yu-xi , LAI De-lin , XU Chun-lai. Synthesis of Polyvinylsilazane-b-Polystyrene Ceramic Precursor and Preparation of Ceramic Nanoparticles[J]. Journal of Synthetic Crystals, 2011, 40(5): 1266-1270 |
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| Authors: | TAI Jin-hua YU Yu-xi LAI De-lin XU Chun-lai |
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| Affiliation: | TAI Jin-hua1,YU Yu-xi2,3,LAI De-lin2,XU Chun-lai4 (1.School of Mechanical,North China University of Water Conservancy and Electric Power,Zhengzhou 450011,China,2.Department of Materials Science and Engineering,College of Materials,Xiamen University,Xiamen 361005,3.Key Laboratory of Fire Retardant Materials of Fujian Province,4.Aerospace Research Institute of Materials & Processing Technology,Beijing 100076,China) |
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| Abstract: | The ceramic precursor,diblock copolymer polyvinylsilazane-block-polystyrene(PVSZ-b-PS),was synthesized by reversible addition fragmentation chain transfer(RAFT) free radical polymerization methods using vinylsilazane and styrene as monomer.The diblock copolymer was found to organize into spherical micelles in N,N-dimethylformamide.The micelle core consists of PVSZ and the shell consists of polystyrene,the diameters of the micelles evaluated by DLS and TEM ranged from 70 nm to 110 nm.Upon evaporation of the ... |
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| Keywords: | block copolymer nanoparticle pyrolysis |
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