| 含有POSS的嵌段聚合物的制备及热性能 |
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| 引用本文： | 刘磊,王文平,费明,郭晓冉,揭晓晓. 含有POSS的嵌段聚合物的制备及热性能[J]. 高分子材料科学与工程, 2010, 0(6): 159-161,166 |
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| 作者姓名： | 刘磊 王文平 费明 郭晓冉 揭晓晓 |
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| 作者单位： | 合肥工业大学化学工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(50673023);合肥工业大学学生创新基金资助项目(XS08032) |
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| 摘 要： | 以单官能团笼状结构倍半硅氧烷(POSS)为引发剂,氯化亚铜/2,2-联吡啶为催化体系,甲苯为溶剂,采用原子转移自由基聚合法(ATRP)制备了大分子引发剂POSS/PMMA和POSS/PMMA-PS嵌段聚合物。通过核磁共振(1H-NMR)、X射线光电子能谱(XPS)和凝胶渗透色谱(GPC)表征了大分子引发剂和嵌段聚合物的结构,实现了POSS在聚合物中的单分散。此外,热重分析(TGA)结果表明,POSS/PMMA和POSS/PMMA-PS嵌段聚合物的分解温度与纯聚甲基丙烯酸甲酯(PMMA)相比分别提高了60℃和151℃。
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| 关 键 词： | 笼状结构倍半硅氧烷 原子转移自由基聚合 嵌段聚合物 热性能 |
Preparation and Thermal Properties of Block Copolymers Containing POSS |
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| LIU Lei,WANG Wen-ping,FEI Ming,GUO Xiao-ran,JIE Xiao-xiao. Preparation and Thermal Properties of Block Copolymers Containing POSS[J]. Polymer Materials Science & Engineering, 2010, 0(6): 159-161,166 |
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| Authors: | LIU Lei WANG Wen-ping FEI Ming GUO Xiao-ran JIE Xiao-xiao |
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| Affiliation: | (Department of Chemical and Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | Macroinitiator polyhedral oligomeric silsesquioxane/polymethylmethacrylate (POSS/PMMA) was synthesized through atom transfer radical polymerization (ATRP) method using monofunctional POSS as an initiator,CuCl/Bpy as catalyst system and toluene as solvent.By using macroinitiator POSS/PMMA and CuCl/Bpy as catalyst system,the block copolymers POSS/PMMA-PS was prepared.The structures of macroinitiator and block copolymer were characterized by Fourier transform infrared spectroscopic(FT-IR),hydrogen nuclear magnetic resonance spectrum(1H-NMR),gel permeation in chromatography(GPC) and X-ray photoelectron specroscopy (XPS),results showing the mono-dispersion of POSS was achieved.The thermogravimetry analysis(TG) investigation indicates that the thermal stability of polymer is improved,which is due to the incorporation of POSS unit. |
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| Keywords: | polyhedral oligomeric silsesquioxane atom transfer radical polymerization block copolymers thermal stability |
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