Synthesis and characterization of a new hydrogen bonded side chain liquid crystal block copolymer and investigation of electrical properties

被引：5
作者：
Korkmaz, Burak [1 ]
Ozerol, Esma Ahlatcioglu [2 ]
Bozdogan, Aysegl Celik [2 ]
Okutan, Mustafa [2 ]
Senkal, Bahire Filiz [1 ]
Gursel, Yesim Hepuzer [1 ]
机构：
[1] Istanbul Tech Univ, Dept Chem, Istanbul, Turkey
[2] Yildiz Tech Univ, Dept Bioengn, Istanbul, Turkey
来源：
PURE AND APPLIED CHEMISTRY | 2017年 / 89卷 / 01期
关键词：
hydrogen bonding; liquid crystalline polymers; POC-16; polyethylene glycol; MESOGENIC ACIDS; POLYMERS; DESIGN;
D O I：
10.1515/pac-2016-0816
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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.
引用
收藏
页码：19 / 28
页数：10
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