TY - JOUR
T1 - A new series of two-ring-based side chain liquid crystalline polymers
T2 - Synthesis and mesophase characterization
AU - Mohan Reddy, Goddeti Siva
AU - Narasimhaswamy, Tanneru
AU - Jayaramudu, Jarugala
AU - Sadiku, Emmanuel Rotimi
AU - Raju, Konduru Mohana
AU - Ray, Suprakas Sinha
PY - 2013
Y1 - 2013
N2 - A new series of side chain liquid crystalline polymers containing a core, a butamethylenoxy spacer, ester groups, and terminal alkoxy groups were synthesised and their structures were confirmed. The core was constructed with two phenyl rings and an ester linking unit. All the polymers were characterised by hot-stage polarising optical microscopy, differential scanning calorimetry, variable temperature X-ray diffraction, thermogravimetric analysis, and gel permeation chromato-graphy. The polymers were found to be liquid crystalline. The nematic and smectic A (SA) phases were observed for the homologues with short-terminal chains (C2 and C6), whereas the homologues with longer chains (C8 to C12) exhibited a smectic C phase. The thermal stability of the polymers was found to be in the range of 293 to 326°C and the molecular weights of the polymers were found to vary from 6×103 to 1.3×104.
AB - A new series of side chain liquid crystalline polymers containing a core, a butamethylenoxy spacer, ester groups, and terminal alkoxy groups were synthesised and their structures were confirmed. The core was constructed with two phenyl rings and an ester linking unit. All the polymers were characterised by hot-stage polarising optical microscopy, differential scanning calorimetry, variable temperature X-ray diffraction, thermogravimetric analysis, and gel permeation chromato-graphy. The polymers were found to be liquid crystalline. The nematic and smectic A (SA) phases were observed for the homologues with short-terminal chains (C2 and C6), whereas the homologues with longer chains (C8 to C12) exhibited a smectic C phase. The thermal stability of the polymers was found to be in the range of 293 to 326°C and the molecular weights of the polymers were found to vary from 6×103 to 1.3×104.
UR - http://www.scopus.com/inward/record.url?scp=84879546581&partnerID=8YFLogxK
U2 - 10.1071/CH13090
DO - 10.1071/CH13090
M3 - Article
AN - SCOPUS:84879546581
SN - 0004-9425
VL - 66
SP - 667
EP - 675
JO - Australian Journal of Chemistry
JF - Australian Journal of Chemistry
IS - 6
ER -