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Fluorescent properties of some polythiophenes synthesized from 2‐(thiophen‐3‐yl)acetohydrazide and acetophenone
Author(s) -
Linh Nguyen Ngoc,
Hung Ha Manh,
Oanh Doan Thi Yen,
Linh Bui Thi Thuy,
Cong Nguyen Tien,
Chinh Nguyen Thuy,
Hoang Thai,
Trung Vu Quoc
Publication year - 2020
Publication title -
vietnam journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2572-8288
pISSN - 0866-7144
DOI - 10.1002/vjch.202000101
Subject(s) - acetophenone , fluorescence , chemistry , photochemistry , organic chemistry , catalysis , physics , quantum mechanics
In this study, new polythiophenes containing hydrazone groups from derivatives of acetophenone were synthesized by chemical oxidative coupling polymerization. Ultraviolet‐visible spectroscopy (UV‐Vis) combined with infrared (IR) analyses proved the supposed structure of novel polythiophenes and proved conformance of the expected synthetic method. Morphology and surface properties of the synthesized polymers were investigated by field‐emission scanning electron microscopy (FE‐SEM). Thermal gravimetry analysis (TGA) has been reported that there was still the presence of small FeCl 3 catalyst in polymers and polymers had a stable thermal stability under air atmosphere. The polymers displayed fluorescence emissions at about 590 nm attributed to the π‐conjugated polythiophene. Polymers without doping have a good electrical conductivity (around 4.03×10 –7 S/cm at 1 MHz).