Degradation of polycaproamide in hydrochloric acid vapour

Synthesis of telechelic oligostyrenes by the ozonoloysis of poly(styrene-stat-butadiene): Protection of styrene units against ozone attack by the use of Di-N-alkyl amides as sacrificial ozone scavengers

“…A similar principle is used to protect elastomers against in-service ozonolytic degradation. 2 Cheradame'l has stated that to synthesize telechelic oligostyrenes, and structurally related oligomers, by the ozonolysis technique, it will be necessary to prevent side reactions of ozone with the styrene units. With a view to accomplishing this, we have investigated the effects of solvent on reactions of ozone with PS and with poly(styrene-stat-butadiene) [P(S-Bu)].…”

“…Although the subject appears still to be controversial, there is general agreement that the initial processes are free radical in nature, and that they probably proceed as shown in Scheme 1. degradation with ozone (see Ref. 2 …”