TY - JOUR
T1 - Photoresponsive behavior and photochemical phase transition of amphiphilic diblock liquid-crystalline copolymer
AU - Yu, Haifeng
AU - Iyoda, Tomokazu
AU - Okano, Kunihiko
AU - Shishido, Atsushi
AU - Ikeda, Tomiki
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005/12
Y1 - 2005/12
N2 - The photoresponsive behavior of an amphiphilic diblock liquid-crystalline (LC) copolymer (P40A37) was studied in both toluene solution and spin-coated film. The LC copolymer in a film state showed slower response and relaxation than that in the solution. Significant H-aggregation in the film led to a blue shift by 16 nm at the maximum absorption. The photochemical phase transition was observed with a polarizing optical microscope (POM) upon exposure to 366-nm light. The photoinduced isotropic state remained stable at room temperature, indicating the potential application for 2-D and 3-D storage.
AB - The photoresponsive behavior of an amphiphilic diblock liquid-crystalline (LC) copolymer (P40A37) was studied in both toluene solution and spin-coated film. The LC copolymer in a film state showed slower response and relaxation than that in the solution. Significant H-aggregation in the film led to a blue shift by 16 nm at the maximum absorption. The photochemical phase transition was observed with a polarizing optical microscope (POM) upon exposure to 366-nm light. The photoinduced isotropic state remained stable at room temperature, indicating the potential application for 2-D and 3-D storage.
KW - Amphiphilic liquid-crystalline diblock copolymer
KW - Azobenzene
KW - Liquid-crystalline polymer
KW - Photochemical phase transition
KW - Photosensitive polymers
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U2 - 10.1080/15421400500253688
DO - 10.1080/15421400500253688
M3 - Article
AN - SCOPUS:29144459884
SN - 1542-1406
VL - 443
SP - 191
EP - 199
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
ER -