Double Ordered Layers within Microphase-separated Lamellar Structure of Double Liquid Crystalline Side-chain Type Block Copolymer

2008 ◽  
Vol 37 (11) ◽  
pp. 1174-1175 ◽  
Author(s):  
Rina Maeda ◽  
Teruaki Hayakawa ◽  
Masatoshi Tokita ◽  
Masa-aki Kakimoto ◽  
Hiroaki Urushibata
Keyword(s):  
Block Copolymer ◽  
Lamellar Structure ◽  
Liquid Crystalline ◽  
Side Chain ◽  
Chain Type ◽  
Ordered Layers

scholarly journals Thermal Properties of Side Chain Type Liquid Crystalline Copolymer Composed of a Mesogenic Monomer and Non-Mesogenic Chiral Monomer

1997 ◽  
Vol 29 (4) ◽  
pp. 303-308 ◽  
Author(s):  
Takashi Mihara ◽  
Kazuhiro Nomura ◽  
Keisuke Funaki ◽  
Naoyuki Koide
Keyword(s):  
Thermal Properties ◽  
Liquid Crystalline ◽  
Side Chain ◽  
Chain Type

The Effect of Hydrogen Bonding on the Mesomorphic Properties for Side Chain Type Liquid Crystalline Polyurethanes

1996 ◽  
Vol 425 ◽  
Author(s):  
T. Mihara ◽  
N. Koide
Keyword(s):  
Hydrogen Bonding ◽  
Liquid Crystalline ◽  
Side Chain ◽  
Flexible Chain ◽  
Remarkable Change ◽  
Polymer Backbone ◽  
Phase Transition Temperatures ◽  
Ft Ir ◽  
Mesomorphic Properties ◽  
Chain Type

AbstractMesomorphic properties and temperature dependence of the hydrogen bonding between urethane bonds (H-bonding) for side chain type liquid crystalline polyurethane(SLCPU)s were studied by thermally controlled FT-IR spectroscopy. A remarkable change in the strength of H-bonding for SLCPUs with a flexible chain in the polymer backbone(flexible SLCPUs) was displayed near the phase transition temperatures, while small changes in the strength of H-bonding for SLCPUs with a rigid moiety in the polymer backbone(rigid SLCPUs) was influenced by a mesogenic group in the side chain and the flexible chain length in the polymer backbone. Furthermore, in order to study the influence of H-bonding in rigid SLCPUs, polyurethane derivatives with methyl group were synthesized replacing hydrogen in urethane bonds. No mesomorphic properties for polyurethane derivatives obtained were exhibited. It was concluded that H-bonding played an important role to exhibit mesomorphic properties of rigid SLCPUs.

Thermal and i.r.-dichroic properties of side-chain type liquid-crystalline elastomers

Polymer ◽  
1997 ◽  
Vol 38 (13) ◽  
pp. 3229-3235 ◽  
Author(s):  
Yuko Ikeda ◽  
Takaki Yonezawa ◽  
Kenji Urayama ◽  
Shinzo Kohjiya
Keyword(s):  
Liquid Crystalline ◽  
Side Chain ◽  
Chain Type
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