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Modeling the Effects of Reactor Backmixing on RAFT Polymerization

机译：模拟反应堆回混对RAFT聚合的影响

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摘要

The effects of reactor backmixing on the outcome of RAFT polymerizations are examined. The kinetic model for the RAFT reaction is based on the first principle of mass balances and the method of moments. Two reactor models were applied for the simulation of backmixing, i.e., a PFTR with loop and multiple CSTRs in series. The models predict the behavior of monomer conversion, molecular weights, their distributions as well as the polydispersities for various chain types at different levels of backmixing. Both models demonstrated that a significant impact of reactor backmixing on RAFT kinetics and polymer molecular weight development exists.
机译：检查了反应器回混对RAFT聚合结果的影响。 RAFT反应的动力学模型基于质量平衡的第一原理和矩量法。应用了两个反应器模型来模拟返混，即带有回路和串联多个CSTR的PFTR。该模型预测了不同回混水平下各种链型的单体转化行为，分子量，它们的分布以及多分散性。两种模型都表明存在反应器回混对RAFT动力学和聚合物分子量发展的重大影响。

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  • 来源
    《Macromolecular reaction engineering》 |2011年第1期|p.55-68|共14页
  • 作者

    Boris Bitsch; Christopher Barner-Kowollik; Shiping Zhu;

  • 作者单位

    Preparative Macromolecular Chemistry, Institut fuer Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 18, 76128 Karlsruhe, Germany,Department of Chemical Engineering, McMaster University,Hamilton, Ontario L8S 4L7, Canada;

    Preparative Macromolecular Chemistry, Institut fuer Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 18, 76128 Karlsruhe, Germany;

    Department of Chemical Engineering, McMaster University,Hamilton, Ontario L8S 4L7, Canada;

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  • 正文语种 eng
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  • 关键词

    backmixing; chemical reactors; kinetic modeling; RAFT; resident time distribution (RTD);

    机译：回混化学反应器;动力学建模筏;居民时间分配（RTD）;

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