In this paper, a newly developed fiber-supported poly(quaternaryammonium bromide)s, which served as an efficient and recyclable supported phase-transfer catalyst in the spinning basket reactor for a series of nucleophilic substitutions, is reported. The fiber catalysts were designed and synthesized systematically from commercially available polyacrylonitrile fiber, and the properties of fiber samples at different stages were characterized in detail by sorts of technologies. Moreover, the nucleophilic substitutions mediated with fiber-supported phase-transfer catalyst exhibited high efficiency to afford a range of substituted products in excellent yields (91–98%) under mild conditions, and on this basis, a solid–liquid phase-transfer catalysis mechanism was proposed. Markedly, the spinning basket reactor with fiber catalyst in its impellers revealed prominent recyclability at least for 15 cycles, and the concise method of operation also exerted a good perspective application in chemical industry.

中文翻译：

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纺丝篮式反应器中纤维担载的聚季铵溴化物作为相转移催化剂

本文报道了一种新开发的纤维负载的聚季铵溴化物，它在旋转篮式反应器中用作一系列亲核取代反应的有效且可回收的负载型相转移催化剂。由市售的聚丙烯腈纤维系统地设计和合成了纤维催化剂，并通过各种技术详细表征了纤维样品在不同阶段的性能。此外，在温和条件下，以纤维负载的相转移催化剂介导的亲核取代反应显示出高效率，能够以优异的收率（91–98％）提供一系列取代产物，在此基础上，固液转移催化提出了机制。明显地，