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Polymer-Plastics Technology and Materials Volume 58, 2019 - Issue 4
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Articles

New Blue Light Emissive Polyazomethine(S) Containing Bromo-Triphenyl Units: Synthesis and Photophysics

Naila KhalidDepartment of Chemistry, Kohat University of Science and Technology, KohatPakistanCorrespondence[email protected]
,
Ahtaram BibiDepartment of Chemistry, Kohat University of Science and Technology, KohatPakistan
,
Khalida AkhtarCentre of Excellence in Physical Chemistry, University of Peshawar, Pakistan
,
Kashif MustafaDepartment of Chemistry, Kohat University of Science and Technology, KohatPakistan
,
Mussabeha KhanDepartment of Chemistry, Kohat University of Science and Technology, KohatPakistan
&
Nishat SaeedDepartment of Chemistry, Kohat University of Science and Technology, KohatPakistan
Pages 419-426 | Published online: 19 Jun 2018
 
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ABSTRACT

A series of bromo-substituted triphenylamine based poly(azomethine)s (P1-P3) were synthesized from the N1-(4-aminophenyl)-N1-(4-bromophenyl)benzene-1,4-diamine (DA) and aromatic dialdehydes. The viscosity of P1-P3 solutions (0.97 to 1.12 g dL−1) and molecular weight distribution analysis by Gel Permeation Chromatography (GPC) discloses the attainment of appreciable molecular weight. The optical transparency and fluorescence properties of the P1-P3 were explored by UV-vis and photoluminescence spectral analysis. From which it was concluded that the presence of 4-bromotriphenylamine and azomethine (CH = N) linkage in our synthesized materials are possibly responsible for the fluorescence with quantum efficiencies of 0.9–2.1 %.

GRAPHICAL ABSTRACT

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