Surfactant Mediated Microphase Separation in Miscible Block Copolymer of Poly(4-vinyl pyridine-b-hydroxybutylacrylate)  

作　　者：Xiang-Yun Xu Yu-Tong Gao Ying-Ying Wang You-Shuang Zhou Bi-Jin Xiong Jin-Tao Zhu 

机构地区：[1]Key Laboratory of Materials Chemistry for Energy Conversion and Storage(HUST)of Ministry of Education,School of Chemistry and Chemical Engineering.Huazhong University of Science and Technology(HUST),Wuhan 430074,China [2]Key Laboratory of Optoelectronic Chemical Materials and Devices(Ministry of Education),Jianghan University,Wuhan 430056,China [3]Key Laboratory of Green Preparation and Application of Functional Materials(Ministry of Education),Hubei Key Laboratory of Polymer Materials,Faculty of Materials Science and Engineering,Hubei University,Wuhan 430062,China

出　　处：《Chinese Journal of Polymer Science》2023年第6期897-904,I0007,共9页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51973077)。

摘　　要：Miscible disordered block copolymers(BCPs)are rarely studied due to the limits in self-assembly into ordered microstructures.Herein,we proposed a facile method for the transformation of disordered miscible BCPs to comb-like BCPs with well-ordered microphase separation structures via blending with amphiphilic surfactants.In this work,poly(4-vinyl pyridine-b-hydroxybutylacrylate)(P4VP-b-P4HBA)was applied as a model of miscible disordered BCPs and the microphase separation was induced via blending with surfactants of dodecylbenzene sulfonic acid(DBSA)and 3-pentadecylphenol(PDP).The ordered microstructures including spherical and cylindrical morphologies were confirmed by transmission electron microscopy(TEM)and small angle X-ray scattering(SAXS)investigation.These ordered microstructures thermal sensitive,in which ordered and disordered transformation(ODT)was observed in the blend of P4VP-b-P4HBA and PDP whereas it disappeared in the blend of P4VP-b-P4HBA and DBSA.The results show that the thermal stability of the ordered microstructures are strongly depends on the interactions between the miscible BCPs and surfactants,which investigated by in situ SAXS and Fourier transform infrared spectrometer(FTIR).The combination of miscible BCPs and surfactant creates a feasible strategy to fabricate ordered nanostructures,which could be employed to develop complicated nanomaterials.

关 键 词：ordered DISORDERED VINYL 

分 类 号：TQ317[化学工程—高聚物工业]