Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 19-28 |
| Number of pages | 10 |
| Journal | Pure and Applied Chemistry |
| Volume | 89 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2017 |
Bibliographical note
Publisher Copyright:© 2017 IUPAC & De Gruyter.
Keywords
- POC-16
- hydrogen bonding
- liquid crystalline polymers
- polyethylene glycol
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