Asymmetric Mesoporous Carbon Microparticles by 3D-Confined Self-Assembly of Block Copolymer/Homopolymer Blends and Selective Carbonization  

作　　者：Jing-Ye Liu Hao-Rui Song Mian Wang Shao-Hong Jin Zheng Liang Xi Mao Wang Li Ren-Hua Deng Jin-Tao Zhu 

机构地区：[1]State Key Laboratory of Materials Processing and Die&Mould Technology,Key Laboratory of Material Chemistry for Energy Conversion and Storage of Ministry of Education,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Chinese Journal of Polymer Science》2023年第5期787-793,I0010,共8页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.52003094 and 52273010)。

摘　　要：Shape control of mesoporous carbon microparticles(MCMPs)is of critical importance;in particular,asymmetric shapes that can yield unique properties have attracted significant attention.However,the tailored synthesis of asymmetric MCMPs with ordered structures remains challenging.Herein,we report a facile route to prepare asymmetric MCMPs by dynamic neutral interface-guided 3D-confined self-assembly(3D-CSA)of block copolymer/homopolymer(BCP/hP)blends,followed by a self-templated selective direct carbonization strategy.BCP/h P Janus microparticles with ordered hierarchical mesostructures were prepared with emulsion solvent evaporation-induced 3D-CSA.The continuous phase of BCP domains was then crosslinked.Composite asymmetric MCMPs are successfully generated after selective carbonization of the crosslinked continuous phase.This method allows tuning the shape of MCMPs easily by varying the blending ratio of BCP/h P.The composite asymmetric MCMPs combine the advantages of asymmetric shape,ordered structure,high specific surface area,chemical inertness and thermal stability and could provide great possibilities for applications in catalysis,drug delivery,energy conversion and storage.

关 键 词：3D-confined self-assembly Block copolymer Phase separation Mesoporous carbon spheres Janus 

分 类 号：TQ317[化学工程—高聚物工业]