Taking advantage of β-hydroxy amine enhanced reactivity and functionality for the synthesis of dual covalent adaptable networks,Polymer Chemistry

当前位置： X-MOL 学术 › Polym. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Taking advantage of β-hydroxy amine enhanced reactivity and functionality for the synthesis of dual covalent adaptable networks
Polymer Chemistry ( IF 4.1 ) Pub Date : 2022-06-08 , DOI: 10.1039/d2py00274d
Dimitri Berne ₁ , Guilhem Coste ₁ , Roberto Morales-Cerrada ₁ , Marine Boursier ₁ , Julien Pinaud ₁ , Vincent Ladmiral ₁ , Sylvain Caillol ₁

Affiliation

This study demonstrates the advantage of using β-hydroxy amine monomers for the synthesis of CANs. The increased reactivity of β-hydroxy amines towards the aza-Michael addition compared to their alkyl equivalents was highlighted by kinetic analyses coupled with rheological experiments. New catalyst-free covalent adaptable networks (CANs) were thus synthesized by poly aza-Michael addition using either β-hydroxy amine or its non-hydroxy analog. These CANs exhibit dynamic aza-Michael exchange under thermal stimulus. The synergistic effect of exchange reactions was highlighted by stress-relaxation and frequency sweep analyses. CANs were finally reshaped and their chemical and physical properties were compared to the initial ones.

中文翻译：

利用β-羟基胺增强反应性和功能性来合成双共价适应性网络

本研究证明了使用 β-羟基胺单体合成 CAN 的优势。与烷基等价物相比，β-羟基胺对氮杂迈克尔加成的反应性增加，这一点通过动力学分析和流变实验突出显示。因此，使用β-羟基胺或其非羟基类似物通过聚氮杂-迈克尔加成合成了新的无催化剂共价适应性网络（CAN）。这些 CAN 在热刺激下表现出动态的 aza-Michael 交换。应力松弛和频率扫描分析突出了交换反应的协同效应。CAN 最终被重新塑造，并将它们的化学和物理特性与最初的进行了比较。

更新日期：2022-06-13

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11