It is thus an object of the invention to provide {HEAD ~ homogeneous colloidal palladium catalysts} which form in {TAIL ~ situ} when the precursor complexes are reduced by hydrogen during hydrogenation of diene polymers and copolymers 
form in
It is thus an object of the invention to provide { HEAD ~ homogeneous colloidal palladium catalysts } which form in { TAIL ~ situ } when the precursor complexes are reduced by hydrogen during hydrogenation of diene polymers and copolymers
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