The monomers chalcones derivatives were synthesized by the condensation reactions of the 4‐hydroxy benzaldehyde and vanillin with p‐hydroxyacetophenone. The monomers were polymerized with dibromoalkanes to give the co‐polyethers containing the photocrosslinkable α, β‐unsaturated carbonyl as photosensitizer group. The structure of polyether was characterized by 1H NMR and 13C NMR spectra. The thermal stability of the polymer was measured by thermogravimetric analysis. The solubility of the polymer in the organic solvents was also studied. The polymers have to be equipped with photosensitive functional groups applied in photopolymers technology.
In this paper, some new polythiophenes containing benzo[d]thiazole heterocycle were synthesized by the oxidative polymerization in chloroform using iron(III) chloride as a catalytic oxidant. Infrared (IR) spectroscopy and ultraviolet–visible (UV-Vis) spectroscopy analyses confirmed that the polymerization reaction successfully took place and the absorption band at 497 nm is typical for π–π* transition in the conjugated polythiophenes. The polymers are composed of relatively uniform particles using field emission scanning electron microscopy (FESEM) method. Based on thermal gravimetric analysis (TGA), the polymers had average thermal stability in the atmosphere when decomposed completely at 500 oC. The polymers exhibited fluorescence emission at about 516 nm due to the conjugated chain in the polymers.
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