Note Phenomenology and Kinetics of the Reaction Between Sulfur and Atactic Polypropylene

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Abstract
While sulfur has been widely used as a dehydrogenating agent, in particular to obtain conjugated dienes [1-4], there is no kinetic information available about its effect on atactic polypropylene (APP), only Dontsov et al. [5] mentioning the products of this reaction, while Stefanovskaya et al. [6] studied the kinetics of the rather similar reaction with tetrachloro-o-benzoquinone. Also worth mentioning are the kinetic studies carried out by Dontsov et al. [7-11] on the reaction kinetics of polyethylene with sulfur, unsaturation, crosslinks, and mercaptides being the main products and the processes being first-order with activation energies of approximately 120 kJ/mol.

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