Synthesis of Tailored Segmented Polyurethanes Utilizing Continuous-Flow Reactors and Real-Time Process Monitoring,Chemistry of Materials

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Synthesis of Tailored Segmented Polyurethanes Utilizing Continuous-Flow Reactors and Real-Time Process Monitoring
Chemistry of Materials ( IF 7.2 ) Pub Date : 2021-10-13 , DOI: 10.1021/acs.chemmater.1c01919
Xabier Lopez de Pariza _{1,

2} , Tim Erdmann ₁ , Pedro L. Arrechea ₁ , Leron Perez ₁ , Charles Dausse ₁ , Nathaniel H. Park ₁ , James L. Hedrick ₁ , Haritz Sardon ₂

Affiliation

Conducting polymerizations under continuous-flow conditions affords distinct advantages over batch experimentation and has increasingly been employed by the research community for chain-growth polymerizations to accelerate material discovery and to finely tune material properties. This work now expands on the reported advances by demonstrating the utility of continuous flow for polyaddition reactions of polyurethanes (PUs). Various reactor configurations enable the on-demand organocatalytic one-step synthesis of linear PUs with tailored soft-to-hard segment ratios in 3–5 min at room temperature. In-line analytics is implemented for real-time process monitoring and to develop process control mechanisms, increasing the control over monomer conversion and material quality and minimizing batch-to-batch variations. The reported strategies thus provide a guideline for the straightforward preparation of libraries of commercially relevant PU materials.

中文翻译：

利用连续流反应器和实时过程监控合成定制分段聚氨酯

在连续流动条件下进行聚合比分批实验具有明显的优势，并且越来越多地被研究界用于链增长聚合，以加速材料发现和微调材料特性。现在，这项工作通过展示连续流动在聚氨酯 (PU) 加聚反应中的效用，扩展了所报告的进展。各种反应器配置能够在室温下 3-5 分钟内按需有机催化一步合成具有定制软硬段比的线性 PU。在线分析用于实时过程监控和开发过程控制机制，增加对单体转化和材料质量的控制，并最大限度地减少批次间的差异。

更新日期：2021-10-26

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