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Director fields of disclinations in the nematic mesophase decorated by focal‐conic texture for side‐chain liquid crystalline polymers
Author(s) -
Hu Zhongming,
Chen Shouxi,
Zhang Shufan,
Qian Renyuan
Publication year - 2000
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 - 10.1002/1521-3927(20001001)21:15<1028::aid-marc1028>3.0.co;2-q
Subject(s) - mesophase , liquid crystal , disclination , texture (cosmology) , materials science , conic section , mesogen , optical microscope , polarized light microscopy , polymer , optics , microscopy , crystallography , liquid crystalline , composite material , physics , chemistry , geometry , scanning electron microscope , optoelectronics , mathematics , artificial intelligence , computer science , image (mathematics)
A new decoration method termed as focal‐conic texture decoration has been established to map the director field of disclinations of nematic mesophases for a side‐chain liquid crystalline polymer (SCLCP) based on its transition from nematic to smectic phase with focal‐conic texture observed under a polarizing optical microscope. FT‐IR microscopy was used to ascertain the relationship between the mesogenic orientation direction and the orientation direction of focal‐conic texture, which exhibits consequently the director field of a disclination.