In this work, we proposed and realized a strategy for fast and low-cost living cationic polymerization of isobutyl vinyl ether (IBVE) based on temporary stability of propagating chain. It combines the decrease of added-base addition to increase the polymerization rate and the use of microflow system to enhance process regulation. To ensure the living characteristic, the concentration of added-base DO was allowed to be as low as 0.1 M for IBVE–HCl/SnCl₄/DO initiation system and 0.5 M for IBVE–HCl/FeCl₃/DO initiation system, respectively; the time to achieve 80% conversion could decrease to around 5 s. We also discussed the effect of reaction mode on the polymerization performances and recognized the mechanism and requirement to achieve living cationic polymerization at decreased added-base addition. These recognitions may broaden the horizon of living cationic polymerization and improve its commercial value with respect to productivity and cost.

中文翻译：

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在微流系统中实现低成本和加速的异丁基乙烯基醚的活性阳离子聚合

在这项工作中，我们基于传播链的​​暂时稳定性，提出并实现了一种快速低成本的异丁基乙烯基醚（IBVE）活性阳离子聚合的策略。它结合了减少添加碱的添加以提高聚合速率，并结合使用微流系统来增强工艺调节。为了确保生活特性，对于IBVE–HCl / SnCl ₄ / DO引发体系，添加碱DO的浓度应低至0.1 M，对于IBVE–HCl / FeCl ₃，其添加碱的浓度应低至0.5 M/ DO启动系统，分别；达到80％转换的时间可能会减少到5秒左右。我们还讨论了反应方式对聚合性能的影响，并认识到在减少碱加成条件下实现活性阳离子聚合的机理和要求。这些认识可以拓宽活性阳离子聚合的视野，并提高其在生产率和成本方面的商业价值。