| PMMA/黑云母纳米复合材料的制备及表征 |
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| 引用本文： | 袁金凤,张留成.PMMA/黑云母纳米复合材料的制备及表征[J].高分子学报,2005(1):24-28. |
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| 作者姓名： | 袁金凤 张留成 |
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| 作者单位： | 河北工业大学化工学院高分子科学与工程研究所,天津,300130;河北工业大学化工学院高分子科学与工程研究所,天津,300130 |
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| 摘 要： | 采用乳液聚合法制备了聚甲基丙烯酸甲酯 黑云母 (PMMA VMT)纳米复合材料 ,其中的黑云母经甲基丙烯酰氧乙基三甲基氯化铵有机改性 ,所得复合材料经XRD、FT IR、DSC、TG等测试结果证明云母已经被有效的剥离 ,复合材料的耐热性能、玻璃化转变温度 (Tg)比PMMA都有所提高 ,但聚合反应速率有所下降 ,复合材料中可萃取的聚合物粘均分子量升高 .
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| 关 键 词： | PMMA 云母 纳米复合材料 乳液聚合 |
| 修稿时间： | 2003年11月9日 |
PREPARATION AND CHARACTERIZATION OF PMMA/VMT NANOCOMPOSITES |
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| YUAN Jinfeng,Zhang Liucheng.PREPARATION AND CHARACTERIZATION OF PMMA/VMT NANOCOMPOSITES[J].Acta Polymerica Sinica,2005(1):24-28. |
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| Authors: | YUAN Jinfeng Zhang Liucheng |
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| Abstract: | Poly(methyl methacrylate)/vermiculite PMMA/VMT nanocomposites were synthesized by emulsion polymerizations in aqueous dispersions containing vermiculite which were modified by methacryloyloxyethyl trimethyl ammonium chloride (DMC). The structure of the nanocomposite was investigated by XRD,FT-IR,DSC and TGA. The results shows that exfoliate structures of vermiculite exist in the PMMA/VMT nanocomposites. Thermal decomposition temperature and glass transition temperature of PMMA/VMT nanocomposites have been improved at lower VMT contents(≤1^0 wt%).The reaction rate of polymerization decreased with adding vermiculite modified by DMC.The viscosity average molecular weight of PMMA/VMT nanocomposites has been in creased. |
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| Keywords: | PMMA Vermiculite Nanocomposites Emulsion polymerization |
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