Synthesis and Characterization of Carbazole Based Donor-Acceptor-Donor Type Polymer for NLO Applications

Carbazole based NLO polymer was synthesized by using Knoevenagel condensation. The polymer is found to be fully soluble in high polar solvents like dimethyl formamide and dimethylsulphoxide. By using GPC and tetrahydrofuran as a solvent, the molecular weight is found to be 5000 g/mol. Thermal analys...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2020-03, Vol.1495 (1), p.12026
Main Authors: Balakrishna, K., Sampath, R., Vishwam, T., Samui, A. B. M., Joshi, P., Mohan, S.Raj
Format: Article
Language:English
Subjects:
Carbazoles
Condensation polymerization
Dimethylformamide
Glass transition temperature
Physics
Polymer films
Polymers
Solvents
Stability analysis
Tetrahydrofuran
Thermal analysis
Thermal stability
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Carbazole based NLO polymer was synthesized by using Knoevenagel condensation. The polymer is found to be fully soluble in high polar solvents like dimethyl formamide and dimethylsulphoxide. By using GPC and tetrahydrofuran as a solvent, the molecular weight is found to be 5000 g/mol. Thermal analysis exhibited thermal stability of the polymer up to 400 °C and glass transition temperature (Tg) at 214 °C. The polymer film has good optical transparency. The non-centrosymmetry in the film was induced by corona poling for second order NLO property, whereas z-scan technique is used to understand third order NLO property. The effective TPA coefficient (β) found to be 5.1 X 10−12 m/W. Computational study indicated that the total charge is located at the center of the molecule in HUMO case whereas in the case of LUMO the charge is spreads out from the center of the molecule.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1495/1/012026