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Critical behavior of the bend elastic constant of a liquid crystalline comblike polymer near the nematic–smectic A phase transition
Author(s) -
Filippov Alexander P.,
Zuev Vjacheslav V.
Publication year - 1999
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/(sici)1521-3927(19991001)20:10<552::aid-marc552>3.0.co;2-6
Subject(s) - liquid crystal , materials science , polymer , phase transition , exponent , critical exponent , constant (computer programming) , phase (matter) , condensed matter physics , bending , dispersity , liquid crystalline , thermodynamics , polymer chemistry , composite material , physics , chemistry , organic chemistry , optoelectronics , computer science , programming language , linguistics , philosophy
The temperature dependence of the bending elastic constant of a combined comblike side‐ and main‐chain liquid crystalline polymer near the nematic–smectic A phase transition was investigated. The bending constant K 3 diverges at the transition, but the critical exponent ν = 1.4 does not agree with the theoretical prediction. The large value of the exponent ν may be explained by the polydispersity of the polymer investigated.