DEGRADATION OF CHAIN MOLECULES .1. EXACT SOLUTION OF THE KINETIC-EQUATIONS

DEGRADATION OF CHAIN MOLECULES .1. EXACT SOLUTION OF THE KINETIC-EQUATIONS
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DOI:
10.1021/ma50004a039
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发表时间:
1981-01-01
期刊:
影响因子:
5.5
通讯作者:
WOLF, BA
WOLF, BA
中科院分区:
化学1区
文献类型:
--
作者:
BALLAUFF, M;WOLF, BA

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给出了链分子降解速率方程的一般解。这种处理方法可以应用于任何方程组和任何初始分布。模型计算进行随机断裂,高斯概率的断裂,和断裂完全在链的中点。起始分子量分布为Schulz型,不同之处在于不均匀性。结果清楚地表明,通过拟合的模型参数的实验分布,有关的降解过程的动力学信息得到的。
Ageneral solutionof the rate equations representing the degradation of chainmolecules is given. The treatment can be applied to any set of equations and to any initial distribution. Model calculations are performed for random scission, for Gaussian probability of scission, and for scission exclusively at the midpoint of the chain. The starting molecular weight distribution is of the Schulz type, differing in the nonuniformity. The results clearly demonstrate that, by fitting the model parameters to experimental distributions, the full kinetic information concerning the degradation process is obtained.