| γ辐照引发无皂乳液聚合法一步合成Ag-聚4-乙烯基吡啶杂化微凝胶 |
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| 引用本文： | 陈庆德,沈兴海,高宏成.γ辐照引发无皂乳液聚合法一步合成Ag-聚4-乙烯基吡啶杂化微凝胶[J].高分子学报,2006(5):722-726. |
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| 作者姓名： | 陈庆德 沈兴海 高宏成 |
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| 作者单位： | 北京大学化学与分子工程学院应用化学系,北京,100871 |
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| 基金项目： | 国家高技术研究发展计划(863计划);北京大学校科研和教改项目 |
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| 摘 要： | 无机-聚合物纳米复合材料是将聚合物与一种或多种无机纳米粒子复合而成的一种材料,它同时具有无机纳米粒子和聚合物的优良特性,在许多重要技术领域具有广泛的应用前景.近20年来,无机-聚合物纳米复合材料的制备及应用备受关注1~6].包括杂化微凝胶在内的纳米复合微球是无机-聚合
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| 关 键 词： | 杂化微凝胶 无皂乳液聚合 γ辐照 4-乙烯基吡啶 |
| 收稿时间： | 2005-12-30 |
| 修稿时间： | 2006-02-07 |
ONE-STEP SYNTHESIS OF SILVER-POLY(4-VINYLPYRIDINE) HYBRID MICROGELS BY γ-IRRADIATION AND SURFACTANT-FREE EMULSION POLYMERIZATION |
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| CHEN Qingde,SHEN Xinghai,GAO Hongcheng.ONE-STEP SYNTHESIS OF SILVER-POLY(4-VINYLPYRIDINE) HYBRID MICROGELS BY γ-IRRADIATION AND SURFACTANT-FREE EMULSION POLYMERIZATION[J].Acta Polymerica Sinica,2006(5):722-726. |
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| Authors: | CHEN Qingde SHEN Xinghai GAO Hongcheng |
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| Institution: | Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 |
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| Abstract: | (Silver-poly(4-vinylpyridine))(Ag-P4VP) hybrid microgels were synthesized by γ-irradiation and surfactant-free emulsion polymerization in a single step.The effects of dose rate and the concentrations of isopropanol,silver ion,N,N′-methylenebisacrylamide(Bis) and 4-vinylpyridine(4-VP) on the hybrid microgels were studied in detail via transmission electron microscopy(TEM),powder X-ray diffraction(XRD) or dynamic light scattering(DLS).The results indicated that the size of Ag nanoparticles in the hybrid microgels increased with the increase of Ag~+ or Bis concentration and with the decrease of dose rate or isopropanol concentration.When the dose rate was decreased,the phase state of Ag nanoparticles was gradually transformed from amorphous state to cubic crystalline state.Although the variety of the P4VP microgels' size was more complex,it could also be easily adjusted by the above-mentioned conditions. |
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| Keywords: | Hybrid microgel(s) Surfactant-free emulsion polymerization γ-Irradiation 4-Vinylpyridine |
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