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Block Copolymers Comprising π‐Conjugated and Liquid Crystalline Subunits: Induction of Macroscopic Nanodomain Orientation
Author(s) -
Han Dehui,
Tong Xia,
Zhao Yi,
Zhao Yue
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201004445
Subject(s) - copolymer , azobenzene , materials science , conjugated system , block (permutation group theory) , polymer , liquid crystal , orientation (vector space) , polymer chemistry , crystallography , chemistry , composite material , optoelectronics , geometry , mathematics
Block party : A block copolymer comprises both regioregular poly(3‐hexylthiophene) (P3HT) and a side‐chain liquid‐crystalline polymer (SCLCP) bearing azobenzene mesogens. The SCLCP block has a clearing temperature above the high crystal‐melting temperature of P3HT, therefore surface‐ and photoinduced orientation of mesogens in the SCLCP block can be used to align stripelike P3HT nanodomains on the macroscopic scale (see picture for AFM images).