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Abstract
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The novel functionality of aromatic tetrazole derivatives with high nitrogen content predetermines a great interest to
tetrazole-containing polymers. Poly(5-vinyltetrazole) is one of the most attractive polymers containing tetrazoles. The
4-chloromethyl styrene (CMS) was copolymerized with acrylonitrile (in various mole ratios) by free radical
polymerization method at 70 °C using α,α-azobis(isobutyronitrile) as an initiator. The reaction azide ion with
copolymers, simultaneously with replacement of all the chlorine atoms in CMS units, causes the nitrile groups are
entirely converted to tetrazole in dimethylformamide at elevated temperatures. The polymers, obtained in quantitative
yields, were characterized by FT-IR and 1H NMR spectroscopy, differential scanning calorimetry, and gel permeation
chromatograph studies. Thermal properties nitrogen-rich polymers show that explosive thermal degradation takes place
at around 260 °C.
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