| MCM41有序介孔SiO2表面接枝PMMA的制备及其对PMMA基聚电解质膜的改性作用研究 |
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| 引用本文： | 徐峰,徐立新,陈枫,杨晋涛,钟明强.MCM41有序介孔SiO2表面接枝PMMA的制备及其对PMMA基聚电解质膜的改性作用研究[J].科技通报,2012(1):143-149. |
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| 作者姓名： | 徐峰 徐立新 陈枫 杨晋涛 钟明强 |
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| 作者单位： | 浙江工业大学化学工程与材料学院 |
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| 基金项目： | 国家自然科学基金面上项目(21074117) |
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| 摘 要： | 通过表面引发原子转移自由基聚合技术(SI-ATRP)使聚甲基丙烯酸甲酯(PMMA)接枝于有序介孔氧化硅(MCM41)粒子的孔道内外表面,制得表面PMMA接枝的MCM41复合粒子(MCM41-g-PM-MA)。进一步利用增塑剂碳酸丙烯酯(PC)与所得的MCM41-g-PMMA共同对PMMA基聚合物电解质膜进行改性,通过溶液浇铸工艺制得PMMA基复合型聚电解质膜。着重考察了MCM41-g-PMMA填充比例、MCM41表面PMMA接枝以及温度等因素对上述体系离子电导率的影响。红外光谱(FTIR)、热重(TGA)、高倍透射电镜(HRTEM)、小角X射线衍射(SAXRD)分析结果表明:PMMA已成功接枝于MCM41粒子的孔道内外表面。交流阻抗测试、差示扫描量热分析(DSC)表明:较改性前的MCM41填充体系,MCM41-g-PMMA填充的PMMA膜具有更优的离子电导率,同时具有更佳的热稳定性能。
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| 关 键 词： | 介孔氧化硅MCM41 聚甲基丙烯酸甲酯 表面接枝 复合型聚合物电解质膜 离子电导率 |
Preparation of Poly(methyl methacrylate) grafted Ordered Mesoporous Silica(MCM41) and Its Effect in Modifying PMMA-based Polymer Electrolyte |
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| XU Feng,XU Lixin,CHEN Feng,YANG Jintao,ZHONG Mingqiang.Preparation of Poly(methyl methacrylate) grafted Ordered Mesoporous Silica(MCM41) and Its Effect in Modifying PMMA-based Polymer Electrolyte[J].Bulletin of Science and Technology,2012(1):143-149. |
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| Authors: | XU Feng XU Lixin CHEN Feng YANG Jintao ZHONG Mingqiang |
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| Institution: | (College of Chemical Engineering and Materials,Zhejiang University of Technology,Hangzhou 310014,China) |
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| Abstract: | The PMMA-grafted ordered mesoporous silica(MSM41-g-PMMA) was firstly prepared by surface-initiated atom transfer radical polymerization of MMA from both interior and exterior surface of MCM41 particles.A series of PMMA-based composite polymer electrolyte membrances were then obtained by solution casting method using propylene carbonate(PC) as plasticizer and the MCM41-g-PMMA as filler.The influence of various factors on the ionic conductivity of PMMA-based composite polymer electrolyte was assessed including the loading amount of the MCM41-g-PMMA,surface modification of MCM41 and temperature as well.The results from infrared spectroscopy(IR),thermogravimetry(TGA),high resolution transmittance electron microscopy(HRTEM),small-angle X-ray diffraction(SAXRD),confirmed that the PMMA could be successfully grafted on the surface of MCM41.The results of alternating current(AC) impedance testing and differential scanning calorimetry(DSC) showed that the PMMA-based polymer electrolyte,composited with the MCM41-g-PMMA,exhibits higher ionic conductivity and better thermal stability compared to the bare MCM41-filled system. |
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| Keywords: | ordered mesoporous silica poly(methyl methacrylate) surface-grafting composite polymer electrolyte ionic conductivity |
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