Study and thermogravimetric analysis of poly n-4 aminostyrol

Abstract EN

The polyaminostyrol samples (PAS) and their copolymers with the styrol differing in position and quantity of amino-group, were obtained by polymerization of monomers on cyclogexan solution.

The observed thermal effects were analysed by the differential thermal analysis combined with a thermogravimetric analysis.

It was found that the introduction of amino-groups into the polystyrols increased the temperature of total degradation of polymer from 150 till 260 ºC.

The increase in thermostability may be explained by the cohesion of macromolecules with the participation of amino-groups, which results in ammonium evolution, as well as in the decrease of valency area band of–NH2 grouping in the region 3370–3440 cm-1.

It was showed that the degree of cohesion formation and thermolysis rate depended on amino-group and their position into the cycle of benzene.