free radical telomerization;
kinetics;
Monte Carlo simulation;
D O I:
10.1016/S0032-3861(99)00772-7
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
Free radical telomerization is studied by Monte Carlo method. In telomerization, generalized rate constants for growing radical chain do not reflect accurately because chains less than five monomer units are important for kinetic treatment. Monte Carlo simulation method is applied for characterizing the telomerization such as validity of kinetic constants depending on the size of chain length and chain length distribution according to the ratio of chain transfer agent to monomer. The effect of various chain transfer agents to the chain length distribution is evaluated. The effect of differentiation of chain transfer constant as a function of chain length is studied by comparing the average chain length and broadness of chain length distributions of resulting telomers which C-infinity is used as chain transfer constant. (C) 2000 Elsevier Science Ltd. All rights reserved.
机构:
Petrochemical Research and Technology Company (NPC-rt), National Petrochemical Company (NPC), P.O. Box 14358-84711, Tehran, IranPetrochemical Research and Technology Company (NPC-rt), National Petrochemical Company (NPC), P.O. Box 14358-84711, Tehran, Iran
Mohammadi, Yousef
Pakdel, Amir Saeid
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机构:
Department of Resin and Additives, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, IranPetrochemical Research and Technology Company (NPC-rt), National Petrochemical Company (NPC), P.O. Box 14358-84711, Tehran, Iran
Pakdel, Amir Saeid
Saeb, Mohammad Reza
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机构:
Department of Resin and Additives, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, IranPetrochemical Research and Technology Company (NPC-rt), National Petrochemical Company (NPC), P.O. Box 14358-84711, Tehran, Iran
Saeb, Mohammad Reza
Boodhoo, Kamelia
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机构:
School of Chemical Engineering and Advanced Materials, Newcastle University, Newcastle Upon Tyne, NE1 7RU Newcastle upon Tyne, United KingdomPetrochemical Research and Technology Company (NPC-rt), National Petrochemical Company (NPC), P.O. Box 14358-84711, Tehran, Iran
机构:
Zhejiang Univ, State Key Union Chem Engn Lab, Polymer React Engn Div, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Union Chem Engn Lab, Polymer React Engn Div, Hangzhou 310027, Peoples R China
Luo, YW
Yu, B
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机构:
Zhejiang Univ, State Key Union Chem Engn Lab, Polymer React Engn Div, Hangzhou 310027, Peoples R ChinaZhejiang Univ, State Key Union Chem Engn Lab, Polymer React Engn Div, Hangzhou 310027, Peoples R China