Structural Transition in Liquid Crystal Bubbles Generated from Fluidic Nanocellulose Colloids

被引：9

作者：

Chu, Guang ^{[1
]}

Vilensky, Rita ^{[1
]}

Vasilyev, Gleb ^{[1
]}

Deng, Shengwei ^{[1
]}

Qu, Dan ^{[2
]}

Xu, Yan ^{[2
]}

Zussman, Eyal ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Fac Mech Engn, IL-32000 Haifa, Israel

[2] Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, 2699 Qianjin St, Changchun 130012, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2017年 / 56卷 / 30期

关键词：

active structure; cellulose nanocrystals; liquid crystal bubbles; topological defects; CHIRAL NEMATIC STRUCTURES; CELLULOSE; NANOCOMPOSITES; DROPLETS; FILMS;

D O I：

10.1002/anie.201703869

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The structural transition in micrometer-sized liquid crystal bubbles (LCBs) derived from rod-like cellulose nanocrystals (CNCs) was studied. The CNC-based LCBs were suspended in nematic or chiral nematic liquid-crystalline CNCs, which generated topological defects and distinct birefringent textures around them. The ordering and structure of the LCBs shifted from a nematic to chiral nematic arrangement as water evaporation progressed. These packed LCBs exhibited a specific photonic cross-communication property that is due to a combination of Bragg reflection and bubble curvature and size.

引用

页码：8751 / 8755

页数：5

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