Induction of bicontinuous cubic liquid-crystalline assemblies for polymerizable amphiphiles via tailor-made design of ionic liquids

2016 ◽  
Vol 52 (96) ◽  
pp. 13861-13864 ◽  
Author(s):  
Hiroaki Takeuchi ◽  
Takahiro Ichikawa ◽  
Masafumi Yoshio ◽  
Takashi Kato ◽  
Hiroyuki Ohno
Keyword(s):  
Ionic Liquids ◽  
Liquid Crystalline ◽  
The Self ◽  
Self Organization ◽  
Organization Behavior ◽  
Cubic Phases ◽  
Bicontinuous Cubic

The self-organization behavior of amphiphiles has been successfully tuned by the tailor-made design of ionic liquids so as to induce them to exhibit bicontinuous cubic phases.

Co-organisation of ionic liquids with amphiphilic diethanolamines: construction of 3D continuous ionic nanochannels through the induction of liquid–crystalline bicontinuous cubic phases

2012 ◽  
Vol 3 (6) ◽  
pp. 2001 ◽  
Author(s):  
Takahiro Ichikawa ◽  
Masafumi Yoshio ◽  
Satomi Taguchi ◽  
Junko Kagimoto ◽  
Hiroyuki Ohno ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Liquid Crystalline ◽  
Cubic Phases ◽  
Bicontinuous Cubic

Self-Organization Behavior of Sub-Micron CdO Grains Grown during Vapour-Solid Transition

2008 ◽  
Vol 278 ◽  
pp. 45-54 ◽  
Author(s):  
Ji Zhong Zhang ◽  
Wei Qiang Wang ◽  
Na Li
Keyword(s):  
Surface Defects ◽  
Silicon Crystal ◽  
The Self ◽  
Self Organization ◽  
Organization Behavior ◽  
Silicon Crystals ◽  
Induced Aggregation ◽  
The Relationship

Various deposits of CdO grains were observed on the surface of N 100 silicon crystals heated at 580 °C and 620 °C for 1 hour in an evaporation-deposition device, respectively. The ball-shaped crystals, and regular-prism-shaped crystals were found on top of bush-like long crystals. Two types of CdO self-organization aggregates were also observed, that is, regular circular-shaped dense aggregate and long-chainshaped aggregate. The self-organization aggregates were composed of numerous submicron CdO grains. The relationship between self-organization aggregates and surface defects of virgin N 100 silicon crystal was investigated. The results showed that the CdO self-organization aggregates were related to surface defects of the virgin N 100 silicon crystal, and a defect induced aggregation (DIA) model is suggested.

scholarly journals Design of Ionic Liquid Crystals Forming Normal-Type Bicontinuous Cubic Phases with a 3D Continuous Ion Conductive Pathway

Crystals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 309 ◽  
Author(s):  
Takahiro Ichikawa ◽  
Yui Sasaki ◽  
Tsubasa Kobayashi ◽  
Hikaru Oshiro ◽  
Ayaka Ono ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Ionic Conductivity ◽  
Liquid Crystalline ◽  
Alkyl Chain ◽  
Normal Type ◽  
Ion Conduction ◽  
Cubic Phases ◽  
Bicontinuous Cubic ◽  
Chain Lengths

We have prepared a series of pyridinium-based gemini amphiphiles. They exhibit thermotropic liquid–crystalline behavior depending on their alkyl chain lengths and anion species. By adjusting the alkyl chain lengths and selecting suitable anions, we have obtained an ionic amphiphile that exhibits a normal-type bicontinuous cubic phase from 38 °C to 12 °C on cooling from an isotropic phase. In the bicontinuous cubic liquid–crystalline assembly, the pyridinium-based ionic parts align along a gyroid minimal surface forming a 3D continuous ionic domain while their ionophobic alkyl chains form 3D branched nanochannel networks. This ionic compound can form homogeneous mixtures with a lithium salt and the resultant mixtures keep the ability to form normal-type bicontinuous cubic phases. Ion conduction measurements have been performed for the mixtures on cooling. It has been revealed that the formation of the 3D branched ionophobic nanochannels does not disturb the ion conduction behavior in the ionic domain while it results in the conversion of the state of the mixtures from fluidic liquids to quasi-solids, namely highly viscous liquid crystals. Although the ionic conductivity of the mixtures is in the order of 10–7 S cm–1 at 40 °C, which is far lower than the values for practical use, the present material design has a potential to pave the way for developing advanced solid electrolytes consisting of two task-specific nanosegregated domains: One is an ionic liquid nano-domain with a 3D continuity for high ionic conductivity and the other is ionophobic nanochannel network domains for high mechanical strength.

Construction of gyroid-structured matrices through the design of geminized amphiphilic zwitterions and their self-organization

2016 ◽  
Vol 52 (82) ◽  
pp. 12167-12170 ◽  
Author(s):  
Takuro Matsumoto ◽  
Ayaka Ono ◽  
Takahiro Ichikawa ◽  
Takashi Kato ◽  
Hiroyuki Ohno
Keyword(s):  
Liquid Crystalline ◽  
Self Organization ◽  
Structured Matrices ◽  
Crystalline Phases ◽  
Liquid Crystalline Phases ◽  
Bicontinuous Cubic

Gemini amphiphilic zwitterions exhibit thermotropic bicontinuous cubic liquid-crystalline phases having a 3D continuous ionic domain.

Induction of Thermotropic Bicontinuous Cubic Phases in Liquid-Crystalline Ammonium and Phosphonium Salts

2012 ◽  
Vol 134 (5) ◽  
pp. 2634-2643 ◽  
Author(s):  
Takahiro Ichikawa ◽  
Masafumi Yoshio ◽  
Atsushi Hamasaki ◽  
Satomi Taguchi ◽  
Feng Liu ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Phosphonium Salts ◽  
Cubic Phases ◽  
Bicontinuous Cubic

Liquid-Crystalline Ion-Conductive Materials:  Self-Organization Behavior and Ion-Transporting Properties of Mesogenic Dimers Containing Oxyethylene Moieties Complexed with Metal Salts

2000 ◽  
Vol 33 (21) ◽  
pp. 8109-8111 ◽  
Author(s):  
Toshihiro Ohtake ◽  
Yasuyuki Takamitsu ◽  
Kaori Ito-Akita ◽  
Kiyoshi Kanie ◽  
Masahiro Yoshizawa ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Metal Salts ◽  
Self Organization ◽  
Organization Behavior ◽  
Conductive Materials

Influence of the self-organization of ionic liquids on the size of ruthenium nanoparticles: effect of the temperature and stirring

2007 ◽  
Vol 17 (31) ◽  
pp. 3290 ◽  
Author(s):  
Thibaut Gutel ◽  
Jordi Garcia-Antõn ◽  
Katrin Pelzer ◽  
Karine Philippot ◽  
Catherine C. Santini ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
The Self ◽  
Self Organization ◽  
Ruthenium Nanoparticles
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