| 从反应步数推导缩聚反应聚合度计算公式 |
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| 引用本文： | 杨建国. 从反应步数推导缩聚反应聚合度计算公式[J]. 高分子通报, 2011, 0(1): 109-112 |
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| 作者姓名： | 杨建国 |
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| 作者单位： | 安徽工业大学化学与化工学院; |
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| 摘 要： | 聚合度计算是缩聚反应学习的重要内容之一.本文从聚合度的定义出发,根据反应步数与聚合物分子数之间的关系,简易地推导了线型缩聚2-2型单体体系a-A-a+b-B-6、2-2+1型单体体系a-A-a+b-B-b+C-b以及2+1型单体体系a-A-b+C-6达到一定反应程度时统一形式的数均聚合度计算公式:n=(1+r)/(1+...
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| 关 键 词： | 缩聚反应 聚合度 摩尔系数 |
Derivation of Number Average Degree of Polycondensation from Reaction Steps |
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| YANG Jian-guo. Derivation of Number Average Degree of Polycondensation from Reaction Steps[J]. Polymer Bulletin, 2011, 0(1): 109-112 |
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| Authors: | YANG Jian-guo |
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| Affiliation: | YANG Jian-guo(School of Chemistry and Chemical Engineering,Anhui University of Technology,Maanshan 243002,China) |
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| Abstract: | Calculation formula of degree of polymerazation is an important content in studying polycondensation theory.In this paper,the unified formula of number average degree of polymerization X_n=(1+r)/(1+r-2rp) according to the definition of degree of polymerization were derived from reaction steps for linear polycondensation,including 2-2 type monomers of a-A-a + b-B-b,2-2+1 type monomers of a-A-a+b-B-b+C-b and 2+1 type monomers of a-A-b + C-b.The characteristics of stepwise growth are fully reflected by this me... |
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| Keywords: | Polycondensation Degree of polymerization Stoichiometric ratio |
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