| SiO_2包覆P(St-4VP)纳米复合粒子的制备与表征 |
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| 引用本文： | 邹华,冉千平,吴石山,沈健. SiO_2包覆P(St-4VP)纳米复合粒子的制备与表征[J]. 高分子材料科学与工程, 2010, 0(1): 137-139 |
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| 作者姓名： | 邹华 冉千平 吴石山 沈健 |
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| 作者单位： | 南京大学化学化工学院;江苏省建筑科学研究院;南京师范大学化学和环境学院; |
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| 摘 要： | 使用功能化的共单体4-乙烯基吡啶(4VP)与苯乙烯共聚,合成了聚(苯乙烯-共-4-乙烯基吡啶)(P(St-4VP))粒子。在NH_4OH/乙醇碱性介质中,溶胶-凝胶法生成的SiO_2纳米粒子包覆在P(St-4VP)粒子表面,得到SiO_2包覆P(St-4VP)纳米复合粒子。随4VP组分增加,所制备的P(St-4VP)/SiO_2纳米复合粒子的壳层表面变得粗糙。P(St-4VP)粒子数随PVP用量增加而增加,因此纳米复合粒子的平均尺寸随PVP用量增加而下降,同时随PVP用量增加形成较平滑的SiO_2壳层。NH_4OH和正硅酸乙酯(TEOS)用量增加,复合粒子的SiO_2壳层表面粗糙程度提高。此外,复合粒子的SiO_2壳层厚度随TEOS用量增加而增加。
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| 关 键 词： | 聚(苯乙烯-共-4-乙烯基吡啶)粒子 SiO2包覆 核-壳结构 纳米复合粒子 |
Synthesis and Characterization of SiO_2-Coated P(St-4VP) Nanocomposite Particles |
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| ZOU Hua,RAN Qiang-ping,WU Shi-Shan,SHEN Jian. Synthesis and Characterization of SiO_2-Coated P(St-4VP) Nanocomposite Particles[J]. Polymer Materials Science & Engineering, 2010, 0(1): 137-139 |
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| Authors: | ZOU Hua RAN Qiang-ping WU Shi-Shan SHEN Jian |
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| Affiliation: | 1;3;1.School of Chemistry and Chemical Engineering;Nanjing University;Nanjing 210093;China;2.Jiangsu Institute of Building Science;Nanjing 210008;3.College of Chemistry and Environment Science;Nanjing Normal University;Nanjing 210097;China |
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| Abstract: | The poly(styrene-co-4-vinylpyridine)(P(St-4VP)) particles were first synthesized by using 4- vinylpyridine(4VP) as the functional comonomer.The SiO_2 nanoparticles were subsequently coated on the P(St- 4VP) particles through the sol-gel nano-coating process in the NH_4OH/ethanol medium.Finally,the SiO_2-coated P (St-4VP)(P(St-4VP)/SiO_2) nanocomposite particles were prepared.The roughness of the SiO_2 shell of the nanocomposite particles increased with increasing the 4VP content in the P(St-4VP) copolymer.W... |
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| Keywords: | poly(styrene-co-4-vinylpyridine) particles SiO2-coating core-shell structure nanocomposite particles |
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