New Blue Light Emissive Polyazomethine(S) Containing Bromo-Triphenyl Units: Synthesis and Photophysics. Issue 4 (4th March 2019)

• Record Type: Journal Article
• Authors: Khalid, Naila; Bibi, Ahtaram; Akhtar, Khalida; Mustafa, Kashif; Khan, Mussabeha; Saeed, Nishat
• Is Part Of: Polymer-plastics technology and materials. Volume 58:Issue 4(2019)
• Page Start: 419
• Page End: 426
• Publication Date: 2019-03-04
• Subjects: Blue light emission -- bromo- linked polymers -- fluorescent polyazomethine -- PL emission of polyazomethine; Polymers -- Periodicals; Polymerization -- Periodicals; Plastics -- Periodicals; Plastics; Polymerization; Polymers; Periodicals; 668
• DOI: 10.1080/03602559.2018.1471719
• Languages: English
• ISSNs: 2574-0881

Abstract

ABSTRACT: A series of bromo-substituted triphenylamine based poly(azomethine)s (P1-P3) were synthesized from the N 1 -(4-aminophenyl)- N 1 -(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: