Thermal degradation of polymers. XIV. Thermal analysis studies in air on homopolymers of m-N,N-dimethylaminostyrene and p-N,N-diethylaminostyrene and their copolymers with styrene

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Abstract

Homopolymers of m-N,N-diethylaminostyrene and p-N,N-diethylaminostyrene and their copolymers with styrene have been subjected to thermal analysis studies in air. Molecular weight and copolymer composition have been shown to influence the stability of the polymers and the shape of the TG and DSC curves in the case of polymers containing m-N,N-dimethylaminostyrene. Polymers containing p-N,N-diethylaminostyrene show TG and DSC curves essentially independent of molecular weight and copolymer composition. The behavior of the two systems is discussed in terms of the antioxidant effect of the chain-bound N,N-dialkylamino substituents and their secondary reactions.

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