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Synthesis and nonlinear optical properties of polyester containing 4‐di‐(2′‐hydroxyethoxy)‐4‐diphenyl‐hydrazonomethyl chromophore
Author(s) -
Issam A. M.,
Ratnamalar R.
Publication year - 2010
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1478
Subject(s) - terephthaloyl chloride , polyester , materials science , thermogravimetric analysis , differential scanning calorimetry , monomer , polymer chemistry , thermal stability , chromophore , polymer , pyridine , second harmonic generation , polyamide , nonlinear optics , chemical engineering , chemistry , condensation polymer , organic chemistry , composite material , nonlinear system , optics , laser , physics , quantum mechanics , engineering , thermodynamics
The nonlinear optical property of new polyester has been studied via second harmonic generation (SHG). The values of electro‐optic coefficients, d 33 and d 31 , of the poled polymer film were 3.15 × 10 −7 and 1.5 × 10 −7 esu, respectively. Thermal behavior of this polyester was studied through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). 4‐di‐(2′‐hydroxyethoxy)‐4‐diphenyl‐hydrazonomethyl was synthesized from the reaction of 3,4‐dihydroxy‐4‐diphenyl‐hydrazonomethyl with 2–chloro–1‐ethanol in a 1:2 mole ratio and subsequently reacted with terephthaloyl chloride (TPC) in the presence of pyridine, as catalyst, to produce the new nonlinear polyester. The chemical structures of the resulting monomers and polymer were characterized by CHN analysis, 1 H‐NMR, FT‐IR, and UV–Vis spectroscopy. Copyright © 2009 John Wiley & Sons, Ltd.