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Pure and Applied Chemistry

The Scientific Journal of IUPAC

Ed. by Burrows, Hugh / Stohner, Jürgen


IMPACT FACTOR 2018: 2.350
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CiteScore 2018: 4.66

SCImago Journal Rank (SJR) 2018: 1.240
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Online
ISSN
1365-3075
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Volume 89, Issue 1

Issues

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

Burak Korkmaz / Esma Ahlatcıoğlu ÖzerolORCID iD: http://orcid.org/0000-0001-9462-134X / Ayşegül Çelik Bozdoğan / Mustafa Okutan / Bahire Filiz Şenkal / Yesim Hepuzer Gursel
Published Online: 2017-01-25 | DOI: https://doi.org/10.1515/pac-2016-0816

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.

Keywords: hydrogen bonding; liquid crystalline polymers; POC-16; polyethylene glycol

Article note:

A collection of invited papers based on presentations at the 16th International Conference on Polymers and Organics Chemistry (POC-16), Hersonissos (near Heraklion), Crete, Greece, 13–16 June 2016.

References

About the article

Published Online: 2017-01-25

Published in Print: 2017-01-01


Citation Information: Pure and Applied Chemistry, Volume 89, Issue 1, Pages 19–28, ISSN (Online) 1365-3075, ISSN (Print) 0033-4545, DOI: https://doi.org/10.1515/pac-2016-0816.

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