| 金属交联羧甲基羟丙基纤维素反应的研究 |
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| 引用本文： | 许凯,王恩浦. 金属交联羧甲基羟丙基纤维素反应的研究[J]. 高分子学报, 1993, 0(4) |
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| 作者姓名： | 许凯 王恩浦 |
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| 作者单位： | 中国科学院广州化学研究所，中国科学院广州化学研究所 广州，邮政编码:510650，广州，邮政编码:510650 |
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| 摘 要： | 使用新型有机钛络合物交联羧甲基羟丙基纤维素(CMHPC),仍得凝胶具备较高的耐温性,热分析结果亦表明交联产物有良好的热稳定性。对有机钛及其它一些金属离子交联CMHPC反应的行为和红外谱图分析显示,CMHPC与金属离子作用时,不仅由羧甲基提供活性络合部位,而且羟丙基也参予反应,交联机制受取代度和反应条件的影响。
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| 关 键 词： | CMHPC 金属交联 有机钛络合物 交联结构 |
STUDY ON METAL CROSSLINKED CARBOXYMETHYL HYDROXYPROPYL CELLULOSE |
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| XU Kai,WANG Enpu. STUDY ON METAL CROSSLINKED CARBOXYMETHYL HYDROXYPROPYL CELLULOSE[J]. Acta Polymerica Sinica, 1993, 0(4) |
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| Authors: | XU Kai WANG Enpu |
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| Abstract: | Carboxymethyl hydroxypropyl cellulose (CMHPC) crosslinked with a novel organic titanium exhibits good thermal stability determined by Thermogravimetry (TG) and Differential Thermogravimetry (DTG) method, and its hydrogel retains greater viscosity at high temperature. The structure of metal crosslinked CMHPC have been investigated by FTIR spectrome-try. The results show that the active crosslinking sites are not only the carboxymethyl groups, but also the hydroxypropyl groups, and the interaction model are influenced by degree of substitute of CMHPC and pH of reaction medium. |
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| Keywords: | CMHPC Metal crosslinked Organic titanium compound FTIR Structure |
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