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Alignment behaviour of liquid crystals on ethyl cellulose films with banded‐texture structure
Author(s) -
Yan Lifeng,
Zhu Qingshi,
Ikeda Tomiki
Publication year - 2003
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1088
Subject(s) - liquid crystal , materials science , shearing (physics) , ethyl cellulose , texture (cosmology) , optical microscope , casting , chloroform , coating , cellulose , microscopy , composite material , thin film , atomic force microscopy , polarized light microscopy , crystallography , chemical engineering , polymer , optics , nanotechnology , organic chemistry , chemistry , scanning electron microscope , optoelectronics , physics , artificial intelligence , computer science , engineering , image (mathematics)
Films were formed by casting and shearing ethyl cellulose in chloroform at high coating speed and thin coating thickness. The films were used as alignment layers for liquid crystals. Atomic force microscopy and polarizing optical microscopy (POM) were used to identify the banded‐texture structure of the films. The alignments of nematic liquid crystal 4‐cyano‐4′‐n‐pentylbiphenyl (5CB) droplets on the films were observed by POM. Furthermore, the time‐dependent alignment behaviour of 5CB on the films was recorded and studied. © 2003 Society of Chemical Industry