| 硝化纤维素-低分子体系相溶性反相色谱的研究 |
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| 引用本文： | 任玉立,朱佩芬.硝化纤维素-低分子体系相溶性反相色谱的研究[J].北京理工大学学报,1988(2). |
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| 作者姓名： | 任玉立 朱佩芬 |
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| 作者单位： | 北京工业学院化学工程系
(任玉立)，北京工业学院化学工程系(朱佩芬) |
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| 摘 要： | 本文将反相色谱理论与Flory—Huggins似晶格模型理论相结合,从热力学及动力学两个方面研究了不同结构的硝化纤维素(NC)-低分子体系的溶解特性,用反相色谱法(lGC)测定了表征体系相溶性的参数:此保留体积V_g、相互作用参数X_(1 2)~∞、混合溶解热△H_M~∞,并利用这些参数判定了不同体系的相溶性,为聚合物浓溶液理论提供了一定的论证。本文由lGC实验结果结合Ca lvet微量量热计实验结果,对NC的溶解动力学进行了初步索探,论证了NC溶于良溶剂时的基本模型,为聚合物浓溶液体系溶解动力学提供了理论和实验基础。
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| 关 键 词： | 反相色谱 溶解性 硝化纤维素 |
A STUDY OF THE SOLUBILITY OF SYSTEMS FORMED FROM NC AND SMALL MOLECULES BY INVERSE GAS CHROMATOGRAPHY ( IGS) |
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| Ren Yuli Zhu Peifen.A STUDY OF THE SOLUBILITY OF SYSTEMS FORMED FROM NC AND SMALL MOLECULES BY INVERSE GAS CHROMATOGRAPHY ( IGS)[J].Journal of Beijing Institute of Technology(Natural Science Edition),1988(2). |
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| Authors: | Ren Yuli Zhu Peifen |
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| Institution: | Department of Chemical Engiaeering |
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| Abstract: | Inverse gas chromatographic theory combined with Flory-Huggins theory of pseudo-lattice model is used in the present work to study the solubility of solution systems composed of different nitrocellulose (NC) and small molecules. Both the thermodynamic apd dynamic properties are emphasized. Some parameters, such as specific retention volume, interaction parameter and mixing heat, which characterize solubility of the system,were measured and the solubility of different systems judged based on these paramters. The dynamics of NC solution is discussed from the results of 1GC and Calvet micro-calorimeter experiments. A basic model for the solution of NC in solvents having high solubility is thus given. The results provide a theoretical and experimental basis for the dynamics of concentrated pojymer solutions. |
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| Keywords: | inverse gas chromatography solubility nitrocellulose |
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