芳构化驱动对醌与异硫氰酸酯交替共聚制备可回收聚硫代亚胺碳酸盐

IF 7.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Wen-Dao Chu, Si-Yu Dan, Jie Zhan, Bo Chen, Ji Xian, Chun-Mei Wang, Quan-Zhong Liu, Jincai Wu and Chun-An Fan
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引用次数: 0

摘要

高效、可控的对苯二甲酸醌交替共聚是一项罕见且具有挑战性的研究。首次探索了在温和条件下芳构化驱动p-QM与异硫氰酸酯的交替共聚反应。在关键催化剂间邻苯二甲酸和引发剂TBD的存在下,该反应可以有效地制备出分子量分布窄、摩尔质量高(可达103.6 kg/mol)的完全交变聚硫代亚胺碳酸盐。实验研究和DFT计算表明间邻苯二甲酸具有协同催化作用。值得注意的是,共聚物可以在真空条件下,在190°C的温度下,在几分钟内以极好的收率再循环成单体,而无需溶剂或催化剂。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Facile synthesis of recyclable polythioimidocarbonates via aromatization-driven alternating copolymerization of para-quinone methide and isothiocyanates†

Facile synthesis of recyclable polythioimidocarbonates via aromatization-driven alternating copolymerization of para-quinone methide and isothiocyanates†

The efficient and controllable alternating copolymerization of para-Quinone Methide (p-QM) is rare and challenging. The aromatization-driven alternating copolymerization of p-QM with isothiocyanates is explored for the first time under mild conditions. In the presence of the key catalyst m-phthalic acid and the initiator TBD, the reaction can efficiently produce completely alternating polythioimidocarbonates with narrow molecular weight distributions and high molar mass (up to 103.6 kg mol−1). Experimental studies and DFT calculations suggest that m-phthalic acid plays a synergistic catalytic role. Remarkably, copolymers can be recycled back into monomers with excellent yields under vacuum at a temperature of 190 °C in just a few minutes without solvents or catalysts.

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来源期刊
Chemical Science
Chemical Science CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
14.40
自引率
4.80%
发文量
1352
审稿时长
2.1 months
期刊介绍: Chemical Science is a journal that encompasses various disciplines within the chemical sciences. Its scope includes publishing ground-breaking research with significant implications for its respective field, as well as appealing to a wider audience in related areas. To be considered for publication, articles must showcase innovative and original advances in their field of study and be presented in a manner that is understandable to scientists from diverse backgrounds. However, the journal generally does not publish highly specialized research.
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