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| 羧甲基纤维素与聚乳酸之间相互作用的光谱法研究 | |
| 引用本文： | 胡勇,扶雄,陈旭东.羧甲基纤维素与聚乳酸之间相互作用的光谱法研究[J].中山大学学报(自然科学版),2010,49(4). |
| 作者姓名： | 胡勇 扶雄 陈旭东 |
| 作者单位： | 1. 广东药学院食品科学学院,广东,中山,528458 2. 华南理工大学轻化工研究所,广东,广州,510640 3. 中山大学化学与化学工程学院,广东,广州,510275 |
| 摘 要： | 应用共振光散射光谱(RLS)、荧光光谱,并结合红外光谱,探讨了羧甲基纤维素(CMC)与聚乳酸(PLA)在溶液中的相互作用机理。结果表明CMC和PLA可以通过相互作用的氢键而形成稳定的分子间复合物(IPCs)。基于RLS技术详细讨论了CMC与PLA的质量比对其相互作用的影响。特别地,通过分析体系RLS信号强度的变化趋势,直观考察了CMC与PLC在溶液中相互作用过程。同时,基于RLS数据,利用自建模型计算了CMC与PLA之间的平均结合位点数。 |
| 关 键 词： | 羧甲基纤维素 聚乳酸 相互作用 光谱 |
| 收稿时间： | 2009-12-10; |
Interaction between Carboxymethyl Cellulose and Polylactic Acid Revealed by Spectroscopy |
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| HU Yong,FU Xiong,CHEN Xudong.Interaction between Carboxymethyl Cellulose and Polylactic Acid Revealed by Spectroscopy[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2010,49(4). | |
| Authors: | HU Yong FU Xiong CHEN Xudong |
| Institution: | (1.College of Food Science, Guangdong Pharmaceutical University,Zhongshan 528458,China;2. College of Light Industry and Food Science,South China University of Technology, Guangzhou 510640,China;3.School of Chemistry and Chemical Engineering,Sun Yat sen University,Guangzhou 510275,China) |
| Abstract: | The interaction mechanism between carboxymethyl cellulose (CMC) and polylactic acid 〖JP3〗(PLA) in solution was studied by FTIR,resonance light scattering (RLS), and fluorescence spectroscopy.〖JP〗The results indicated that the CMC and PLA formed a steady homogeneous intermolecular complex (IPCs) due to the interaction of hydrogen bonding. The effect of mass ratio on the forming of the complex was investigated based on RLS technology.The interaction process of CMC and PLA in solution was directly observed by the analysis of changing trends of RLS signal. The average number of bind sites of the complex was also investigated by self built mathematical models based on RLS values. |
| Keywords: | carboxymethyl cellulose polylactic acid interaction spectroscopy |
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