| STUDY ON THE SURFACE MODIFICATION OF NANO-TiO2 BY GRAFTING PMMA／PBMA AND ITS THERMAL STABILITY |
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| 引用本文： | 宇海银 Jia-shanGu JunDu Ming-yunGuan.STUDY ON THE SURFACE MODIFICATION OF NANO-TiO2 BY GRAFTING PMMA／PBMA AND ITS THERMAL STABILITY[J].高分子科学,2005,0(3):243-247. |
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| 作者姓名： | 宇海银 Jia-shanGu JunDu Ming-yunGuan |
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| 作者单位： | CollegeofChemistryandMaterialsScience,AnhuiNormalUniversity,Wuhu241000,China |
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| 摘 要： | The surface of nano-TiO2 was encapsulated with hydroxyl-propyl-methyl cellulose (HPMC), and then cografted with acrylates. Conditions of absorbing and grafting have been studied. Modified nano-TiO2 particles were characterized by FT-IR spectra, TEM and TG analysis. It was convinced from FT-IR studies that both methyl methacrylate (MMA) and butylmethacrylate (BMA) were co-grafted onto the surface of nano-TiO2 particles. TEM images show that the surface of nano-TiO2 particles was successfully modified by a thick layer of film-like polymer. TG results demonstrate that the decomposition temperature of HPMC-g-PMMA/PBMA, which has been grafted onto the surface of nano-TiO2, is 56.9 K higher than that of HPMC-g-PMMA/PBMA.
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| 关 键 词： | 聚甲基丙烯酸甲酯 热稳定性 接枝反应 表面改性技术 二氧化钛 |
| 收稿时间： | 2004-02-09 |
| 修稿时间： | 2004-05-12 |
STUDY ON THE SURFACE MODIFICATION OF NANO-TiO2 BY GRAFTING PMMA/PBMA AND ITS THERMAL STABILITY |
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| Hai-yin Yu,Jia-shan Gu,Jun Du,Ming-yun Guan.STUDY ON THE SURFACE MODIFICATION OF NANO-TiO2 BY GRAFTING PMMA/PBMA AND ITS THERMAL STABILITY[J].Chinese Journal of Polymer Science,2005,0(3):243-247. |
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| Authors: | Hai-yin Yu Jia-shan Gu Jun Du Ming-yun Guan |
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| Abstract: | The surface of nano-TiO2 was encapsulated with hydroxyl-propyl-methyl cellulose (HPMC), and then cografted with acrylates. Conditions of absorbing and grafting have been studied. Modified nano-TiO2 particles were characterized by FT-IR spectra, TEM and TG analysis. It was convinced from FT-IR studies that both methyl methacrylate (MMA) and butylmethacrylate (BMA) were co-grafted onto the surface of nano-TiO2 particles. TEM images show that the surface of nanoTiO2 particles was successfully modified by a thick layer of film-like polymer. TG results demonstrate that the decomposition temperature of HPMC-g-PMMA/PBMA, which has been grafted onto the surface of nano-TiO2, is 56.9 K higher than that of HPMC-g-PMMA/PBMA. |
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| Keywords: | Hydroxyl-propyl-methyl cellulose Nano-TiO2 particles Surface modification Cograft polymerization Thermal stability |
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