Responsive Surfactant-Driven Morphology Transformation of Block Copolymer Microparticles.

Mengmeng Zhang,Yinhan Xu,Jintao Zhu,Jiangping Xu

Chemistry (Weinheim an der Bergstrasse, Germany)（2025）

Huazhong University of Science and Technology

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Abstract

Block copolymer (BCP) microparticles, which exhibit rapid change of morphology and physicochemical property in response to external stimuli, represent a promising avenue for the development of programmable smart materials. Among the methods available for generating BCP microparticles with adjustable morphologies, the confined assembly of BCPs within emulsions has emerged as a particularly facile and versatile approach. This review provides a comprehensive overview of the role of responsive surfactants in modulating interfacial interactions at the oil-water interface, which facilitates controlled BCP microparticle morphology. We elucidate how variations in the properties of responsive surfactants, activated by external stimuli, influence BCP chain arrangement and interfacial selectivity. Additionally, this review explores the applications of shape-switchable microparticles in advanced technologies such as smart display, fluorescence modulation, magnetic resonance imaging, drug delivery, and photonic crystal. Finally, the challenges and prospective future directions in this rapidly evolving field are discussed.

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【要点】：本文综述了响应性表面活性剂在调控嵌段共聚物（BCP）微粒子形态变化中的作用，及其在智能显示、荧光调控等先进技术中的应用，并讨论了该领域的挑战与未来发展方向。

【方法】：通过综述现有研究成果，分析了响应性表面活性剂如何通过调节油水界面的界面相互作用来控制BCP微粒子的形态。

【实验】：本文为综述文章，未涉及具体实验过程，未提及使用的数据集名称和实验结果。