摘要
随着纳米科技的深入发展,具有精确可控形貌和结构的聚合物纳米粒子受到了广泛关注,在诸多领域都具有广泛的应用前景。两亲性的嵌段共聚物在选择性溶剂中可以自组装成各种胶束结构,如柱状胶束、囊泡,球形胶束等。尤其在液晶嵌段共聚物体系中,通过引入液晶规整化作用作为其溶液态自组装驱动力,可以制备出不同形貌和尺寸的纳米胶束结构,从而直接决定了其组装体的功能和性能。因此,控制胶束结构的尺寸十分重要。近年来,如何通过简单高效的方法实现对聚合物纳米组装结构尺寸的精确控制,成为了化学和材料科学领域的热点和难点之一。本文综述了近年来液晶嵌段共聚物(liquid crystalline block copolymers,LC BCPs)的溶液态自组装领域的研究进展,主要集中在3个方面,包括对液晶规整化作用驱动自组装的深入理解、精确控制胶束形貌和尺寸的组装方法以及可控多级自组装。
With the development of nanotechnology,the preparation of polymeric nanoparticles with finely controlled morphologies and structures has attracted extensive attention,and found widely applicable in various fields.Amphiphilic block copolymers can self-assemble into a variety of micellar structures,such as cylinders,vesicles,and spherical micelle in selective solvents.In particular,by introducing mesogenic ordering as a driving force,the solution-state self-assembly behaviors of liquid crystalline block copolymers LCBCPs can be significantly different.Since the properties of micellar aggregates are directly determined by their morphologies and sizes,it is very important to control the size of the micelles structure.In recent years,the precise control over the size of Polymer nanoassembly structures via simple and efficient methods has been one of the hot spots and difficulties in the field of chemistry and materials science.In this review,we summarized the research progress of solution-state self-assembly of LC BCPs for the past few years,mainly focusing on three aspects,including a comprehensive understanding of mesogenic ordering-driven self-assembly,precise assembly methods,and controllable hierarchical self-assembly.
作者
赵明珠
金碧鑫
李霄羽
ZHAO Mingzhu;JIN Bixin;LI Xiaoyu(School of Materials,Beijing Institute of Technology,Beijing 100081,China)
出处
《液晶与显示》
北大核心
2025年第2期309-328,共20页
Chinese Journal of Liquid Crystals and Displays
基金
国家自然科学基金(No.51973019,No.22175024,No.52303266)。
关键词
液晶嵌段共聚物
精确可控自组装
多级自组装
liquid crystalline block copolymer
precisely controlled self-assembly
hierarchical assembly
