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首页> 外文期刊>Advanced Materials >Toward Stimuli-Responsive Dynamic Thermosets through Continuous Development and Improvements in Covalent Adaptable Networks (CANs)
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Toward Stimuli-Responsive Dynamic Thermosets through Continuous Development and Improvements in Covalent Adaptable Networks (CANs)

机译：通过连续开发和改进的共价适应网络（罐），通过连续开发和改进来刺激敏感动态热固性

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摘要

Covalent adaptable networks (CANs), unlike typical thermosets or other covalently crosslinked networks, possess a unique, often dormant ability to activate one or more forms of stimuli-responsive, dynamic covalent chemistries as a means to transition their behavior from that of a viscoelastic solid to a material with fluid-like plastic flow. Upon application of a stimulus, such as light or other irradiation, temperature, or even a distinct chemical signal, the CAN responds by transforming to a state of temporal plasticity through activation of either reversible addition or reversible bond exchange, either of which allows the material to essentially re-equilibrate to an altered set of conditions that are distinct from those in which the original covalently crosslinked network is formed, often simultaneously enabling a new and distinct shape, function, and characteristics. As such, CANs span the divide between thermosets and thermoplastics, thus offering unprecedented possibilities for innovation in polymer and materials science. Without attempting to comprehensively review the literature, recent developments in CANs are discussed here with an emphasis on the most effective dynamic chemistries that render these materials to be stimuli responsive, enabling features that make CANs more broadly applicable.
机译：与典型的热固性或其他共价交联网络不同的共价适应网络（罐）具有独特的，通常是休眠的能力，其激活一种或多种形式的刺激响应，动态的共价化学品作为从粘弹性固体中的行为过渡其行为的手段到具有流体状塑料流动的材料。在施加刺激时，例如光或其他照射，温度甚至是不同的化学信号，通过激活可逆添加或可逆键交换，可以通过转变为时间可塑性的状态来响应，其中任何一个都允许材料基本上重新平衡与不同于形成原始共价交联网络的那些不同的改变的条件，通常同时能够实现新的和不同的形状，功能和特性。因此，罐头跨越热固性和热塑性塑料之间的分裂，从而为聚合物和材料科学的创新提供了前所未有的可能性。在不试图全面审查文献的情况下，这里讨论了最近的罐头的发展，重点是最有效的动态化学，使这些材料成为刺激响应的刺激，使得能够更广泛地适用的功能。

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