摘要
The number of the hyperbranched polymers in the system is investigated for the polymerization process to give the asymptotic form of the concentration of the n-mer. The polydispersity exponent is calculated, which coincides with that of the classical result. Finally, the asymptotic forms of the number, the weight and the z-average degrees of the polymerization were evaluated analytically to obtain polydispersity index, which is close to 1 as the reaction is quantitatively completed.
The number of the hyperbranched polymers in the system is investigated for the polymerization process to give the asymptotic form of the concentration of the n-mer. The polydispersity exponent is calculated, which coincides with that of the classical result. Finally, the asymptotic forms of the number, the weight and the z-average degrees of the polymerization were evaluated analytically to obtain polydispersity index, which is close to 1 as the reaction is quantitatively completed.
基金
This work was supported by the National Natural Science Foundation of China(Grant Nos.20574016 and 20303006)
the Natural Science Foundation of Hebei Province(Grant Nos.201072 and B2004000093).
关键词
超分支聚合体
多分散指数
聚合过程
渐近形式
hyperbranched polymers, polydispersity exponent, polydispersity index.
