Method for introducing carbonyl groups into polymers containing double carbon-carbon linkages
||US 7385011 B2
||Nov 23, 2005
||Jun 10, 2008
||Dec 28, 2006
N2O-mediated oxidn. of rubbers contg. double carbon-carbon bonds was carried out until oxygen level in polymer reached 3-40 wt %. Polymers contg. carbonyl groups were obtained. This method allows introduction of only carbonyl groups with no other groups and without formation of byproducts such as catalyst residues. The method removes the stages of purifn. of polymers and complex treatment of degrdn. product of the modifying agent.