Positional Order in the Columnar Phase of Lyotropic Chromonic Liquid Crystals Mediated by Ionic Additives
Positional Order in the Columnar Phase of Lyotropic Chromonic Liquid Crystals Mediated by Ionic Additives
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离子添加剂介导的溶致发色液晶柱状相的位置顺序
DOI：
10.1021/acsomega.0c00229
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发表时间：
2020-04
期刊：
影响因子：
4.1
通讯作者：
Daoliang Wang
中科院分区：
文献类型：
--
作者：
Ningdong Huang;Jiaojiao Tao;Shenghui Wei;Weiheng Huang;Daoliang Wang
用高分辨同步辐射小角X射线散射法研究了苯-1，3，5-三甲酰胺(BTA)衍生物与葡萄糖酸(GDL)酸的超分子组装过程中溶致变色液晶(LCLCs)的位序。研究发现，位置有序六方相的形成严重依赖于BTA衍生物、CBTA和GDL添加剂的浓度，这导致了与传统的具有共价键和固定长度的溶致液晶(LCS)不同的行为。观察到六方相在一定范围内与另一相共存。有趣的是，六方相的晶格间距R几乎保持不变，但随CaTa的变化而变化。上述观察结果归因于LCLC性质的独特敏感性，如单个圆柱体组件的轮廓长度和灵活性以及相共存对溶液中添加剂的敏感性。我们的研究揭示了LCL中位置有序的复杂性，这不仅与分层可逆自组装的基本原理有关，而且引起了LCS的根本兴趣。
Positional order in the lyotropic chromonic liquid crystals (LCLCs) is investigated in the supramolecular assembly of benzene 1,3,5-tricarboxamide (BTA) derivatives with the glucono-delta-lactone (GdL) acid additive by high-resolution synchrotron radiation small-angle X-ray scattering. The formation of positionally ordered hexagonal phase is found to profoundly depend on the concentrations of BTA derivatives, cBTA, and GdL additives, caddtive, giving rise to unusual behavior distinctive from conventional lyotropic liquid crystals (LCs) with covalent bonds and fixed length. The hexagonal phase is observed to coexist with another phase in certain range of caddtive/cBTA. Intriguingly, the lattice spacing R of the hexagonal phase remains almost constant by varying caddtive but changes with cBTA. The above observations are attributed to unique sensitivities of the LCLC properties, such as the contour length and flexibility of individual cylinder assemblies and phase coexistence, to additives in the solutions. Our study reveals the complexity in positional ordering in the LCLCs which not only relates to the underlying principles of hierarchical reversible self-assembly but also attracts fundamental interests in LCs.
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影响因子：
5.5
作者：
R. Podgornik;V. Parsegian
通讯作者：
R. Podgornik;V. Parsegian
DOI：
10.1126/science.1182340
发表时间：
2010-01-29
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Cui H;Pashuck ET;Velichko YS;Weigand SJ;Cheetham AG;Newcomb CJ;Stupp SI
通讯作者：
Stupp SI
DOI：
10.1021/la200505y
发表时间：
2011-03
期刊：
Langmuir : the ACS journal of surfaces and colloids
影响因子：
--
作者：
Heung‐Shik Park;Shin-Woong Kang;L. Tortora;Satyendra Kumar;O. Lavrentovich
通讯作者：
Heung‐Shik Park;Shin-Woong Kang;L. Tortora;Satyendra Kumar;O. Lavrentovich
影响因子：
3.9
作者：
Magid, LJ;Li, Z;Butler, PD
通讯作者：
Butler, PD
SSRF 的小角度 X 射线散射光束线
影响因子：
2.8
作者：
Tian Feng;Li Xiu-Hong;Wang Jie
通讯作者：
Wang Jie