TY - JOUR
T1 - Synthesis and characterization of a new hydrogen bonded side chain liquid crystal block copolymer and investigation of electrical properties
AU - Korkmaz, Burak
AU - Özerol, Esma Ahlatcioǧlu
AU - Bozdoǧan, Ayşegül Çelik
AU - Okutan, Mustafa
AU - Şenkal, Bahire Filiz
AU - Gursel, Yesim Hepuzer
N1 - Publisher Copyright:
© 2017 IUPAC & De Gruyter.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - A new PEG-containing liquid crystalline side chain block copolymer HBC-PEG550 was prepared from poly(ethylene glycol)-b-poly(2-(diethylamino) ethyl methacrylate copolymer (BC-PEG550) and 8-(4-cyanobiphenyl-4′-oxy) octan-1-ol (LC8) by molecular self-assembly processes via hydrogen bond formation between amine group of HBC-PEG550 and hydroxyl group of the LC8. The formation of H bond was confirmed by using FTIR spectroscopy. The liquid crystalline behavior of the HBC-PEG550 was investigated by differential scanning calorimeter (DSC) and polarized optical microscopy. Dielectric properties of HBC-PEG550 and HBC-PEG550 has been studied by impedance spectroscopy. Real and imaginary parts of complex dielectric constant, impedance, and energy loss tangent factor for HBC-PEG550 and HBC-PEG550 have been characterized in the frequency range of 100 Hz-15 MHz.
AB - A new PEG-containing liquid crystalline side chain block copolymer HBC-PEG550 was prepared from poly(ethylene glycol)-b-poly(2-(diethylamino) ethyl methacrylate copolymer (BC-PEG550) and 8-(4-cyanobiphenyl-4′-oxy) octan-1-ol (LC8) by molecular self-assembly processes via hydrogen bond formation between amine group of HBC-PEG550 and hydroxyl group of the LC8. The formation of H bond was confirmed by using FTIR spectroscopy. The liquid crystalline behavior of the HBC-PEG550 was investigated by differential scanning calorimeter (DSC) and polarized optical microscopy. Dielectric properties of HBC-PEG550 and HBC-PEG550 has been studied by impedance spectroscopy. Real and imaginary parts of complex dielectric constant, impedance, and energy loss tangent factor for HBC-PEG550 and HBC-PEG550 have been characterized in the frequency range of 100 Hz-15 MHz.
KW - POC-16
KW - hydrogen bonding
KW - liquid crystalline polymers
KW - polyethylene glycol
UR - http://www.scopus.com/inward/record.url?scp=85016005697&partnerID=8YFLogxK
U2 - 10.1515/pac-2016-0816
DO - 10.1515/pac-2016-0816
M3 - Article
AN - SCOPUS:85016005697
SN - 0033-4545
VL - 89
SP - 19
EP - 28
JO - Pure and Applied Chemistry
JF - Pure and Applied Chemistry
IS - 1
ER -