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Ferroelectric liquid crystalline polysiloxanes containing a naphthalene moiety
Author(s) -
Gopalakrishnan Coimbatore R.,
Sadashiva Bukkinakere K.
Publication year - 1998
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(19980201)19:2<97::aid-marc97>3.0.co;2-c
Subject(s) - moiety , hydrosilylation , ferroelectricity , polymer , materials science , side chain , naphthalene , monomer , liquid crystal , polymer chemistry , differential scanning calorimetry , chemical engineering , organic chemistry , chemistry , composite material , optoelectronics , dielectric , catalysis , physics , engineering , thermodynamics
The synthesis and thermal properties of side‐chain liquid‐crystalline polysiloxanes containing a naphthalene moiety are described. The hydrosilylation of the monomers (ω‐alkenenaphthoic acid derivatives) with poly(hydrogenmethylsiloxane) resulted in the desired ferroelectric polymers. Two series of polymers were prepared using two slightly different core unit structures. Preliminary results of optical polarising microscopy and differential scanning calorimetric investigations are reported. The polymers show smectic A and chiral smectic C phases.