Thermal, Near-Infrared Light, and Amine Solvent Triple-Responsive Recyclable Imine-Type Vitrimer: Shape Memory, Accelerated Photohealing/Welding, and Destructing Behaviors
Thermal, Near-Infrared Light, and Amine Solvent Triple-Responsive Recyclable Imine-Type Vitrimer: Shape Memory, Accelerated Photohealing/Welding, and Destructing Behaviors
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热、近红外光和胺溶剂三重响应可回收亚胺型 Vitrimer：形状记忆、加速光愈合/焊接和破坏行为
DOI：
10.1021/acs.iecr.0c04257
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发表时间：
2020-12
影响因子：
4.2
通讯作者：
Qiuyu Zhang
中科院分区：
文献类型：
--
作者：
Hua Zheng;Shenqiang Wang;Chuan Lu;Yafeng Ren;Zhao Liu;Dongliang Ding;Zhiqiang Wu;Xiangyi Wang;Yanhui Chen;Qiuyu Zhang
目前，聚亚胺类玻璃化聚合物的功能单一，对外界刺激的响应性差，限制了其作为智能材料的广泛应用。在此，我们报道了一种热，近红外光，和胺溶剂三响应的聚亚胺玻璃化聚合物（ACAT-vitrimer），通过将苯胺低聚物引入到传统的亚胺型玻璃化聚合物中，通过苯甲醛，间苯二甲胺和三（2-氨基乙基）胺的缩聚反应。该材料具有上级的机械性能、热稳定性、流变性、焊接性能和可回收性。更有趣的是，ACAT玻璃体还表现出独特的光热转换特性。与传统的热压法相比，ACAT-玻璃态聚合物的光致形状记忆行为更加可控和高效。此外，ACAT-玻璃化聚合物在近红外（NIR）光照射下表现出加速的光愈合/焊接和完全破坏行为，这是首次报道的一种亚胺基玻璃化聚合物。这种简单的制造策略结合动态共价化学与时空可控的光热效应提供了一种有效的方法，将传统的亚胺型玻璃化物转化为刺激响应材料，以获得更广泛的应用。
Currently, polyimine vitrimer is restricted by unitary functionality and poor responsiveness to external stimuli, thus showing limited potentials for broader applications as a kind of smart material. Herein, we reported a thermal, near-infrared light, and amine solvent triple-responsive polyimine vitrimer (ACAT-vitrimer) by incorporating oligoaniline into a traditional imine-type vitrimer through the polycondensation reaction of terephthaldehyde,m-xylylene diamine, and tris (2-aminoethyl) amine. The material exhibited superior mechanical properties, thermal stability, rheology, welding property, and recyclability. More interestingly, the ACAT vitrimer also demonstrated a unique photothermal conversion property. Compared with traditional hot-pressing method, the photoinduced shape memory behavior of the ACAT-vitrimer was much more controllable and efficient. Additionally, the ACAT-vitrimer exhibited accelerated photohealing/welding and complete destructing behaviors under the irradiation of near-infrared (NIR) light, which was reported for the first time as a kind of imine-based vitrimer. Such easy fabrication strategy combining dynamic covalent chemistry with a spatiotemporally controllable photothermal effect provided an efficient approach to convert the conventional imine-type vitrimer into stimulus-responsive materials for broader applications.
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仿生可逆的燃热聚合物纳米复合材料。
影响因子：
18.2
作者：
Cudjoe E;Khani S;Way AE;Hore MJA;Maia J;Rowan SJ
通讯作者：
Rowan SJ
影响因子：
5.5
作者：
Adzima, Brian J.;Aguirre, H. Alan;Kloxin, Christopher J.;Scott, Timothy F.;Bowman, Christopher N.
通讯作者：
Bowman, Christopher N.
影响因子：
4.6
作者：
Pepels, Mark;Filot, Ivo;Goossens, Han
通讯作者：
Goossens, Han
影响因子：
29.4
作者：
Kloxin, Christopher J.;Scott, Timothy F.;Bowman, Christopher N.
通讯作者：
Bowman, Christopher N.
影响因子：
56.9
作者：
Scott, TF;Schneider, AD;Bowman, CN
通讯作者：
Bowman, CN