Molecular Control of Liquid Crystalline Orientation of PBO and PBT

1992 ◽  
Author(s):  
Issifu I. Harruna ◽  
Malcolm B. Polk
Keyword(s):  
Liquid Crystalline ◽  
Molecular Control ◽  
Crystalline Orientation

Liquid crystalline orientation of polyfluorenes for polarized electroluminescence devices

2000 ◽  
Author(s):  
Katharine S. Whitehead ◽  
Martin Grell ◽  
Donal D. C. Bradley ◽  
Markus Jandke ◽  
Peter Strohriegl
Keyword(s):  
Liquid Crystalline ◽  
Crystalline Orientation

scholarly journals High Thermal Diffusivity in Thermally Treated Filamentous Virus-Based Assemblies with a Smectic Liquid Crystalline Orientation

Viruses ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 608 ◽  
Author(s):  
Toshiki Sawada ◽  
Yuta Murata ◽  
Hironori Marubayashi ◽  
Shuichi Nojima ◽  
Junko Morikawa ◽  
...  
Keyword(s):  
Thermal Diffusivity ◽  
Liquid Crystalline ◽  
Mean Free Path ◽  
Heat Conducting ◽  
Covalent Bonds ◽  
Crystalline Orientation ◽  
Conductive Materials ◽  
Polymeric Chains ◽  
High Thermal Diffusivity ◽  
M13 Phage

Polymers are generally considered thermal insulators because the amorphous arrangement of the polymeric chains reduces the mean free path of heat-conducting phonons. Recent studies reveal that individual chains of polymers with oriented structures could have high thermal conductivity, because such stretched polymeric chains effectively conduct phonons through polymeric covalent bonds. Previously, we have found that the liquid crystalline assembly composed of one of the filamentous viruses, M13 bacteriophages (M13 phages), shows high thermal diffusivity even though the assembly is based on non-covalent bonds. Despite such potential applicability of biopolymeric assemblies as thermal conductive materials, stability against heating has rarely been investigated. Herein, we demonstrate the maintenance of high thermal diffusivity in smectic liquid crystalline-oriented M13 phage-based assemblies after high temperature (150 °C) treatment. The liquid crystalline orientation of the M13 phage assemblies plays an important role in the stability against heating processes. Our results provide insight into the future use of biomolecular assemblies for reliable thermal conductive materials.

Systematic Molecular Control of Interfacial Structure in Nanoporous Carbons

2003 ◽  
Vol 788 ◽  
Author(s):  
Kengqing Jian ◽  
Gregory P. Crawford ◽  
Robert H. Hurt
Keyword(s):  
Molecular Orientation ◽  
Liquid Crystalline ◽  
Substrate Material ◽  
Interfacial Structure ◽  
Mesoporous Carbons ◽  
Nanoporous Carbons ◽  
Molecular Control ◽  
Flat Substrate ◽  
Internal Surfaces ◽  
Template Selection

ABSTRACTThe present paper describes a new concept of synthesizing nanoporous carbons that allows control not only of the pore structure, but also of the molecular structure of the internal surfaces. Interfacial molecular control is achieved through the use of discotic liquid crystalline precursors whose molecular orientation on the substrate material is known or can be determined by simple measurements on flat substrate test samples. Here a suite of nanoporous (mesoporous) carbons are synthesized from various porous glass and silica gel templates, and a model is developed to predict the carbon properties from template properties thus allowing systematic template selection.

Liquid Crystalline Orientation of Rod Blocks within Lamellar Nanostructures from Rod−Coil Diblock Copolymers

2010 ◽  
Vol 43 (16) ◽  
pp. 6531-6534 ◽  
Author(s):  
Bradley D. Olsen ◽  
Xun Gu ◽  
Alexander Hexemer ◽  
Eliot Gann ◽  
Rachel A. Segalman
Keyword(s):  
Liquid Crystalline ◽  
Diblock Copolymers ◽  
Crystalline Orientation

Metal-Ion-Induced Switch of Liquid-Crystalline Orientation of Metallomacrocycles

2016 ◽  
Vol 22 (44) ◽  
pp. 15674-15683 ◽  
Author(s):  
Shin-ichiro Kawano ◽  
Takashi Hamazaki ◽  
Atsushi Suzuki ◽  
Kenshin Kurahashi ◽  
Kentaro Tanaka
Keyword(s):  
Metal Ion ◽  
Liquid Crystalline ◽  
Crystalline Orientation

Main-Chain Liquid Crystalline Elastomers: Monomer and Cross-Linker Molecular Control of the Thermotropic and Elastic Properties

2008 ◽  
Vol 41 (9) ◽  
pp. 3098-3108 ◽  
Author(s):  
Miguel Bispo ◽  
Daniel Guillon ◽  
Bertrand Donnio ◽  
Heino Finkelmann
Keyword(s):  
Elastic Properties ◽  
Liquid Crystalline ◽  
Main Chain ◽  
Molecular Control ◽  
Cross Linker
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