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Synthesis and characterization of novel poly[4‐phenyl‐3‐(thiophen‐3‐ylmethyl)‐1 H ‐1,2,4‐triazole‐5(4 H )‐thione]
Author(s) -
Trung Vu Quoc,
Linh Nguyen Ngoc,
Duong Tran Thi Thuy,
Chinh Nguyen Thuy,
Linh Duong Khanh,
Hung Ha Manh,
Oanh Doan Thi Yen
Publication year - 2019
Publication title -
vietnam journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2572-8288
pISSN - 0866-7144
DOI - 10.1002/vjch.2019000141
Subject(s) - polythiophene , polymer , polymerization , materials science , thermal stability , polymer chemistry , conjugated system , polypyrrole , analytical chemistry (journal) , chemical engineering , photochemistry , conductive polymer , chemistry , organic chemistry , composite material , engineering
By the oxidative coupling polymerization, a new polythiophene containing 1,2,4‐triazole heterocyclic group was synthesized in chloroform solvent using iron(III) chloride as an oxidant catalyst. Analyses of infrared (IR) and ultraviolet–visible (UV‐Vis) spectra confirmed that the polymerization reaction took place and the absorption band at 469 nm characterized for π–π* transition in the conjugated polymer. Morphology and surface properties of the polymer were studied by field emission scanning electron microscopy (FESEM). Polymer had relatively uniform size distribution. Based on thermal gravimetry analysis (TGA), polymer is without impurities and has an adequate thermal stability in air atmosphere when completely decomposed at 500 o C. The polymer exhibited fluorescence emissions at 596 nm corresponding to the conjugated chain in polymer. Polymer exhibited a good electrical conductivity in the undoped state (around 1.37E–7 S.cm ‐1 at 1 MHz).