SYNTHESES AND CHARACTERIZATION OF POLY(IMINOPHENOL)S DERIVED FROM 4-BROMOBENZALDEHYDE: THERMAL, OPTICAL, ELECTROCHEMICAL AND FLUORESCENT PROPERTIES

İsmet Kaya; Ali Avcı; Özlem Gültekin

doi:10.1007/s10118-012-1176-5

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SYNTHESES AND CHARACTERIZATION OF POLY(IMINOPHENOL)S DERIVED FROM 4-BROMOBENZALDEHYDE: THERMAL, OPTICAL, ELECTROCHEMICAL AND FLUORESCENT PROPERTIES

PAPER | Updated：2023-01-03

- SYNTHESES AND CHARACTERIZATION OF POLY(IMINOPHENOL)S DERIVED FROM 4-BROMOBENZALDEHYDE: THERMAL, OPTICAL, ELECTROCHEMICAL AND FLUORESCENT PROPERTIES
- Chinese Journal of Polymer Science Vol. 30, Issue 6, Pages: 796-807(2012)
- Affiliations：
  
  a.Çanakkale Onsekiz Mart University, Faculty of Sciences and Arts, Department of Chemistry, 17020, Çanakkale, Turkey
  b.Celal Bayar University, Faculty of Sciences and Arts, Department of Chemistry, 45040, Manisa, Turkey
- Author bio：
  
  *İsmet Kaya, E-mail: kayaismet@hotmail.com
- Funds：
- DOI：10.1007/s10118-012-1176-5
  CLC：
- Received：04 January 2012，
  
  Revised：2012-01-31，
  
  Accepted：09 February 2012，
  
  Published：2012-11
- Accepted：
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İsmet Kaya, Ali Avcı, Özlem Gültekin. SYNTHESES AND CHARACTERIZATION OF POLY(IMINOPHENOL)S DERIVED FROM 4-BROMOBENZALDEHYDE: THERMAL, OPTICAL, ELECTROCHEMICAL AND FLUORESCENT PROPERTIES[J]. Chinese Journal of Polymer Science, 2012, 30(6): 796-807.
DOI：

İsmet Kaya, Ali Avcı, Özlem Gültekin. SYNTHESES AND CHARACTERIZATION OF POLY(IMINOPHENOL)S DERIVED FROM 4-BROMOBENZALDEHYDE: THERMAL, OPTICAL, ELECTROCHEMICAL AND FLUORESCENT PROPERTIES[J]. Chinese Journal of Polymer Science, 2012, 30(6): 796-807. DOI： 10.1007/s10118-012-1176-5.

摘要

Abstract

Schiff base monomers [2-(4-bromobenzylideneamino)phenol and 2-(4-bromobenzylideneamino)-5-methylphenol] were synthesized by the condensation reaction of 4-bromobenzaldehyde with aromatic aminophenols. Then

the monomers were converted to their polyphenol derivatives by oxidative polycondensation reactions (OP) in an aqueous alkaline medium. The structures of the synthesized compounds were characterized by solubility tests

FT-IR

NMR

TG-DTA

DSC and SEC techniques. The HOMO-LUMO energy levels and electrochemical (

) and optical (

) band gaps were calculated from cyclic voltammetry (CV) and UV-Vis measurements

respectively. Cyclic voltammetry (CV) was used to determine the electrochemical oxidation-reduction characteristics. Optical properties were investigated by UV-Vis and fluorescence analyses. Solid state electrical conductivities were measured on polymer films by four point probe technique using a Keithley 2400 electrometer. The effects of electron-donating (—CH

) group at

-position of —NH

group in aminophenol on electrochemical and thermal properties were also discussed. Photoluminescence (PL) properties of the synthesized materials were determined in solution forms using different solvents. Fluorescence measurements were carried out in various concentrated solutions to determine the optimum concentrations to obtain the maximal PL intensities.

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