| 线型高聚物分子量分布函数的另一种推导方法 |
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| 引用本文： | 张星辉,王骏.线型高聚物分子量分布函数的另一种推导方法[J].高分子学报,2005(5):725-730. |
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| 作者姓名： | 张星辉 王骏 |
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| 作者单位： | 西南交通大学应用物理系,成都,610031;成都市科学技术局,成都,610012 |
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| 基金项目： | 四川省应用基础研究计划基金资助项目（基金号03JY029-063-2） |
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| 摘 要： | 针对自由基聚合歧化终止和偶合终止两类机理生成的线型高聚物,应用统计物理的基本原理,对其分子量分布重新进行了理论推导,其方法简洁清晰,无须任何附加假定,导出FlorySchulz分布.结果有助于从另一方面理解FlorySchulz分布的物理学基础.
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| 关 键 词： | 线型高聚物 自由基聚合 分子量分布函数 Flory-Schulz分布 |
| 收稿时间： | 2004-05-24 |
| 修稿时间： | 2004-10-18 |
AN ALTERNATIVE DEDUCTIVE METHOD FOR MOLECULAR WEIGHT DISTRIBUTION FUNCTION OF LINEAR POLYMERS |
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| ZHANG Xinghui,WANG Jun.AN ALTERNATIVE DEDUCTIVE METHOD FOR MOLECULAR WEIGHT DISTRIBUTION FUNCTION OF LINEAR POLYMERS[J].Acta Polymerica Sinica,2005(5):725-730. |
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| Authors: | ZHANG Xinghui WANG Jun |
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| Institution: | 1 Department of Applied Physics, Southwest Jiaotong University, Chengdu 610031 ;2 Chengdu Municipal Science and Technology Bureau, Chengdu 610012 |
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| Abstract: | The Flory-Schulz distribution or the most probable distribution was deduced in literature, for the molecular weight distribution functions of linear polymers synthesized by condensation and addition reactions in some simple cases. An alternative theoretical way for deducing these equations is given according to the most probable state by using the basic principle in statistical physics for two model systems of typical linear polymers, the forming of which obeys the mechanism of free radical termination by combination and disproportionation. Then the Flory-Schulz distribution is obtained quite naturally. This theoretical method is simple and easy without any additional supposition. It is hoped that this study could be helpful in understanding the physical foundation of the Flory-Schulz distribution. |
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| Keywords: | Linear polymer Free radical polymerization Molecular weight distribution function Flory-Schulz distribution |
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