具有快速响应特性的环境响应型智能水凝胶的研究进展

Progress in stimuli-responsive smart hydrogels with rapid responsive characteristics

环境响应智能水凝胶应用于化学传感器、化学微阀、人造肌肉、药物控释载体、物质分离等领域时常常需要快速响应特性,提高智能水凝胶的响应速率成为了智能水凝胶研究领域的重要课题之一。本文主要综述了具有快速响应特性的环境响应智能水凝胶的构建策略与方法,重点介绍了3类具有不同结构的快速响应型智能水凝胶,即具有多孔结构的快速响应智能水凝胶、具有梳状结构的快速响应智能水凝胶以及具有微球复合结构的快速响应智能水凝胶。

Stimuli-responsive smart hydrogels have been considered to be highly potential in versatile applications in numerous fields, such as chemical sensors and/or actuators, chemical values, artificial muscle, controlled drug delivery systems and substance separations, for which rapid responsive characteristics are highly desired. Therefore, rapid response to environmental stimuli is critical for the versatility of such smart hydrogels. This review briefly introduces the design and fabrication of stimuli-responsive smart hydrogels with rapid responsive characteristics, including three main types of smart hydrogels designed with different structures, which are open-cell porous structure, comb-type structure, and microsphere-composited structure. This review provides valuable information and guidance for rational design of novel stimuli-responsive smart hydrogels with rapid responsive characteristics.