Magnetic orientation of side-chain liquid crystalline polyguanamines

Novel side-chain liquid crystalline polyguanamine with mesogenic groups (LCPGs) exhibited smectic liquid crystallinity. The polymers had an oriented structure under a magnetic field due to higher diamagnetic susceptibility of the mesogenic group. The mesogenic groups could be perpendicularly arrange...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2004-06, Vol.14 (2), p.1604-1607
Main Authors: Oishi, Y., Suzuki, T., Awano, H., Yonetake, K.
Format: Article
Language:English
Subjects:
Applied sciences
Camber
Cooling
Crystallinity
Crystallization
Exact sciences and technology
Glass
Heating
Liquid crystal polymers
Liquid crystals
Liquids
Magnetic fields
Magnetic liquids
Optical diffraction
Optical microscopy
Organic polymers
Physicochemistry of polymers
Properties and characterization
Structure, morphology and analysis
Superconducting magnets
Superconductivity
Tilt
X-ray diffraction
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Description
Summary:Novel side-chain liquid crystalline polyguanamine with mesogenic groups (LCPGs) exhibited smectic liquid crystallinity. The polymers had an oriented structure under a magnetic field due to higher diamagnetic susceptibility of the mesogenic group. The mesogenic groups could be perpendicularly arranged on a glass substrate under a vertical magnetic field. Furthermore, they were obliquely aligned on the glass substrate by a tilt magnetic field. Tilt angles between the mesogen and the glass substrate were almost consistent with the directions of applied magnetic fields. Magnetic fields afforded various oriented structures, and the magneto-oriented structures were fixed in the samples.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2004.831009