仿生多相限域复合高分子凝胶  

Bioinspired Composite Polymeric Gel with Multiphase Confinement

作　　者：周杭生 黄金 赵天艺 刘明杰 Hang-sheng Zhou;Jin Huang;Tian-yi Zhao;Ming-jie Liu(School of Chemistry;International Research Institute for Multidisciplinary Science,Beihang University,Beijing 100191)

机构地区：[1]北京航空航天大学化学学院,北京100191 [2]北京航空航天大学国际交叉科学研究院,北京100191

出　　处：《高分子学报》2023年第11期1641-1662,共22页Acta Polymerica Sinica

基　　金：国家重点研发项目(项目号2022YFA1503000);国家自然科学基金(基金号22161142021);中国博士后科学基金(基金号2021M700317)资助项目.

摘　　要：自然界中,许多生物软组织中存在多相限域结构的功能凝胶,例如高山生物细胞中的抗冻凝胶和肌肉组织中的力学各向异性凝胶,它们在生物活动中发挥了重要作用.合成高分子凝胶虽然具有与天然软组织相似的软、湿和弹性特性,但缺乏环境适应性,在复杂外界环境中的应用受限.天然凝胶材料因其独特的多相限域结构,具备更优的环境适应性.因此,通过仿生限域结构是开发适应性复合高分子凝胶的有效途径.本文主要回顾了具有多相限域结构的自适应凝胶材料的设计原则和制备策略,从构筑异质互穿网络、微相分离网络和各向异性网络三个方面出发,介绍了功能高分子凝胶在防冻、形状记忆、表面功能化、力学性能调控和响应性驱动等方面的研究进展.最后,探讨了仿生多相限域复合高分子凝胶领域当前面临的挑战和前景.In nature,numerous adaptive polymeric gels with multiphase confined structures exist in biological soft tissues,such as anti-freezing gel in alpine biological cells and mechanical anisotropic gel in muscle tissue,which play an essential role in biological activities.Although synthetic gels have similar soft and wet properties and elastic characteristic to natural soft tissue,its application is limited in external complex environment due to the lack of adaptability.The adaptability of natural gel materials far exceeds that of current synthetic gels due to their special confined structures.Therefore,biomimetic design of heterogeneous confined structure is an effective approach to fabricating polymeric gel with high adaptability under various conditions.In this review,the design criteria and fabrication strategies of adaptive high-performance gels with multiphase confined heterostructures are reviewed.We summarized the research progress of polymeric functional gels in anti-freezing,shape memory,surface functionalization,high mechanical property and responsive actuation from three aspects:heterogeneous interpenetration network,microphase separation network and anisotropic network.Meanwhile,we also discussed the current challenges and prospects in the field of bioinspired confined adaptive polymeric functional gels.

关 键 词：仿生高分子凝胶 多相协同 限域复合 适应性功能 

分 类 号：TQ427.26[化学工程]