Optically reconfigurable shape memory metallo-polymer mediated by a carbolong complex and radically exchangeable covalent bond,Polymer Chemistry

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Optically reconfigurable shape memory metallo-polymer mediated by a carbolong complex and radically exchangeable covalent bond
Polymer Chemistry ( IF 4.1 ) Pub Date : 2022-03-03 , DOI: 10.1039/d2py00192f
Liulin Yang ₁ , Haibo Zhao ₁ , Yulin Xie ₁ , Pufan Ouyang ₁ , Yonghong Ruan ₁ , Jiangxi Chen ₂ , Wengui Weng ₁ , Xumin He ₁ , Haiping Xia ₃

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Conventional shape memory polymers (SMPs) are restricted to predetermined permanent shapes and therefore cannot be reconfigured arbitrarily to adapt to variant application scenarios. Meanwhile, shape memory behaviour is mostly thermally active and is often induced by direct heating and lacks spatial or remote control. Herein, we report a novel SMP with a reconfigurable network containing a semi-crystalline polymer chain, radically exchangeable covalent bond and photothermoresponsive carbolong complex moiety. The photothermal effect of the carbolong complex and the thermal responsiveness of the semi-crystalline polymer chain and radically exchangeable covalent bond lead to shape memory behaviour and network topological rearrangement using near-infrared light irradiation. Such a strategy offers an opportunity for building reconfigurable shape memory polymers that can be manipulated by either direct heating or remote light irradiation.

中文翻译：

由碳复合物和可自由基交换的共价键介导的光学可重构形状记忆金属聚合物

传统的形状记忆聚合物 (SMP) 仅限于预先确定的永久形状，因此不能任意重新配置以适应不同的应用场景。同时，形状记忆行为主要是热活动的，通常是由直接加热引起的，缺乏空间或远程控制。在此，我们报告了一种具有可重构网络的新型 SMP，该网络包含半结晶聚合物链、可自由基交换的共价键和光热响应性 carbolong 复合物部分。carbolong 配合物的光热效应和半结晶聚合物链的热响应性和可自由基交换的共价键使用近红外光照射导致形状记忆行为和网络拓扑重排。

更新日期：2022-03-03

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