Constituent Isomerism-Induced Quasicrystal and Frank-KasperσSuperlattices Based on Nanosized Shape Amphiphiles  

作　　者：Zebin Su Jiahao Huang Wenpeng Shan Xiao-Yun Yan Ruimeng Zhang Tong Liu Yuchu Liu Qing-Yun Guo Fenggang Bian Xiaran Miao Mingjun Huang Stephen Z.D.Cheng 

机构地区：[1]School of Molecular Science and Engineering,South China Advanced Institute for Soft Matter Science and Technology,South China University of Technology,Guangzhou 510640 [2]Department of Polymer Science,College of Polymer Science and Polymer Engineering,University of Akron,Akron,OH 44325 [3]Shanghai Synchrotron Radiation Facility,Zhangjiang Laboratory,Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201204

出　　处：《CCS Chemistry》2021年第5期1434-1444,共11页中国化学会会刊（英文）

基　　金：This study was supported by the Key-Area Research and Development Program of Guangdong Province(nos.2019B010941002 and 2020B010182002);the National Natural Science Foundation of China(nos.71890871 and U1832220);the Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices(no.2019B121203003);Guangdong Project(no.2016ZT06C322);the Fundamental Research Funds for the Central Universities(no.2019JQ05).

摘　　要：Naturally,subtle variations in the chemical structures of constituent molecules may significantly affect their multiscale spatial arrangements,properties,and functions.Deceptively simple spherical assemblies supply an ideal platform to investigate how subtle chemical differences affect hierarchically assembled structures.Here,the authors report two sets of nanosized shape amphiphiles,which were constructed by a triphenylene core and six polyhedral oligomeric silsesquioxane cages peripherally grafted through linkers.The slight differences in these samples are merely several methylene units in their linkers,including several pairs of constituent isomers.These nanosized shape amphiphiles self-assemble into a variety of unconventional spherical packing structures,which include the Frank-Kasperσphase and dodecagonal quasicrystal.Several types of unconventional phase transitions were systematically investigated.The authors alternated the conventional columnar phases of discotic molecules to unconventional spherical packing phases.These unconventional structures may shed light into discovering discotic mesogens-based materials with new properties and functions.

关 键 词：self-assembly Frank-Kasper phase QUASICRYSTAL shape amphiphile constituent isomer 

分 类 号：O63[理学—高分子化学]