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Development of a Large-Scale Stopped-Flow System for Heterogeneous Olefin Polymerization Kinetics

机译：异构烯烃聚合动力学的大规模停流系统的开发

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摘要

Stopped-flow (SF) polymerization is a powerful tool to investigate the nature of the active site of heterogeneous Ziegler-Natta catalysts, but poor polymer yields due to short polymerization times limit detailed structural analyses of the obtained polymer. A new large-scale SF polymerization system is described in which an arbitrary volume of slurry can be transferred to obtain a polymer yield sufficient for a variety of analytic purposes. The developed LSF system is proven to be highly scalable and stable, leading to reproducible polymerization in an expanded time range from 0.03 s to a few seconds. The accurate polymerization below 0.1 s is promising for future studies to evaluate accurate kinetics as well as dormant processes in Ziegler-Natta olefin polymerization.
机译：停止流（SF）聚合是研究多相齐格勒-纳塔催化剂活性位点性质的有力工具，但由于聚合时间短，聚合物收率低，限制了所得聚合物的详细结构分析。描述了一种新的大规模SF聚合系统，其中可以转移任意体积的淤浆以获得足以用于各种分析目的的聚合物收率。事实证明，开发的LSF系统具有高度的可扩展性和稳定性，可在从0.03 s到几秒钟的扩展时间范围内实现可重现的聚合。低于0.1 s的精确聚合对于未来研究以评估Ziegler-Natta烯烃聚合的精确动力学以及休眠过程很有希望。

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  • 来源
    《Macromolecular reaction engineering》 |2012年第7期|p.275-279|共5页
  • 作者

    Toshiaki Taniike; Shinya Sano; Mitsuhiro Ikeya; Vu Quoc Thang; Minoru Terano;

  • 作者单位

    School of Materials Science, Japan Advance Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan;

    School of Materials Science, Japan Advance Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan;

    School of Materials Science, Japan Advance Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan;

    School of Materials Science, Japan Advance Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan;

    School of Materials Science, Japan Advance Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    kinetics (polym.); polyolefins; stopped-flow method; Ziegler-Natta polymerization;

    机译：动力学（多项式）;聚烯烃停流法;齐格勒-纳塔聚合;

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