From Columns to Networks: Search toward the Elusive Single Gyroid with π-Shaped Polyphilic Liquid Crystalline Block Molecules.

IF 8.3 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
Small Science Pub Date : 2025-05-22 eCollection Date: 2025-07-01 DOI:10.1002/smsc.202500157
Silvio Poppe, Changlong Chen, Yu Cao, Feng Liu, Carsten Tschierske
{"title":"From Columns to Networks: Search toward the Elusive Single Gyroid with <i>π</i>-Shaped Polyphilic Liquid Crystalline Block Molecules.","authors":"Silvio Poppe, Changlong Chen, Yu Cao, Feng Liu, Carsten Tschierske","doi":"10.1002/smsc.202500157","DOIUrl":null,"url":null,"abstract":"<p><p>Polyphilic block molecules form a wide range of new liquid crystalline (LC) phases with complex morphologies on a nanometer scale. Herein the soft self-assembly of <i>π</i>-shaped <i>p</i>-terphenyl-based bolapolyphiles having two adjacent aliphatic side chains at the central benzene ring (catechol dialkyl ethers) is reported with a focus on the design of single-network structures. Depending on the length of the side chains and temperature a series of polygonal honeycombs, a zeolite-like LC, a lamellar phase, and two segmented network phases with cubic symmetry is found. In these networks self-assembled glycerol spheres, forming the junctions, are interconnected by coaxial <i>p</i>-terphenyl bundles. Upon side-chain elongation, a double-gyroid phase with three-way junctions is replaced by the single diamond having a four-way junction network. However, the single gyroid supposed to be formed by further side-chain expansion could not be observed; instead, the LC self-assembly breaks down completely. It is hypothesized that the formation of single-network phases by bottom-up self-assembly in soft matter systems requires a minimum junction valence of at least 4 to stabilize the networks.</p>","PeriodicalId":29791,"journal":{"name":"Small Science","volume":"5 7","pages":"2500157"},"PeriodicalIF":8.3000,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12257908/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Small Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/smsc.202500157","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/7/1 0:00:00","PubModel":"eCollection","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

Polyphilic block molecules form a wide range of new liquid crystalline (LC) phases with complex morphologies on a nanometer scale. Herein the soft self-assembly of π-shaped p-terphenyl-based bolapolyphiles having two adjacent aliphatic side chains at the central benzene ring (catechol dialkyl ethers) is reported with a focus on the design of single-network structures. Depending on the length of the side chains and temperature a series of polygonal honeycombs, a zeolite-like LC, a lamellar phase, and two segmented network phases with cubic symmetry is found. In these networks self-assembled glycerol spheres, forming the junctions, are interconnected by coaxial p-terphenyl bundles. Upon side-chain elongation, a double-gyroid phase with three-way junctions is replaced by the single diamond having a four-way junction network. However, the single gyroid supposed to be formed by further side-chain expansion could not be observed; instead, the LC self-assembly breaks down completely. It is hypothesized that the formation of single-network phases by bottom-up self-assembly in soft matter systems requires a minimum junction valence of at least 4 to stabilize the networks.

从圆柱到网络:寻找π型多亲液晶块分子难以捉摸的单陀螺。
多亲嵌段分子在纳米尺度上形成了多种形态复杂的新型液晶相。本文报道了在中心苯环上有两个相邻的脂肪侧链的π型对ter苯基亲多酚(儿茶酚二烷基醚)的软自组装,重点是单网络结构的设计。根据侧链长度和温度的不同,发现了一系列的多边形蜂窝状相,一个类似沸石的LC,一个层状相和两个具有立方对称的分段网络相。在这些网络中,自组装的甘油球形成连接,通过同轴对三苯束相互连接。侧链延伸后,具有三向结的双旋相被具有四向结网络的单金刚石所取代。然而,无法观察到侧链进一步膨胀形成的单旋回;相反,LC自组装完全崩溃。假设软物质系统中自下而上自组装形成的单网络相需要至少4的最小结价才能稳定网络。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
14.00
自引率
2.40%
发文量
0
期刊介绍: Small Science is a premium multidisciplinary open access journal dedicated to publishing impactful research from all areas of nanoscience and nanotechnology. It features interdisciplinary original research and focused review articles on relevant topics. The journal covers design, characterization, mechanism, technology, and application of micro-/nanoscale structures and systems in various fields including physics, chemistry, materials science, engineering, environmental science, life science, biology, and medicine. It welcomes innovative interdisciplinary research and its readership includes professionals from academia and industry in fields such as chemistry, physics, materials science, biology, engineering, and environmental and analytical science. Small Science is indexed and abstracted in CAS, DOAJ, Clarivate Analytics, ProQuest Central, Publicly Available Content Database, Science Database, SCOPUS, and Web of Science.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信