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Abstract: A new approach to a problem of preparation, regulation o properties and formation of three-dimensional structure of complexing polymer sorbents and metal polymer complex catalysts with specially designed structure of active centres has been developed main principle is based on the use of of polymer composition and consists in prearrangement of macromolecules of initial complexing polymer or metal polymer complex catalyst to sorbing metal or hydrocarbon substrate followed by fixation of optimum for particular substrate conformation by intermolecular crosslinking. Using this principle a number of crosslinked complexing polymer sorbents and metal polymer complex catalysts containing phosphorylic, carboxylic, pyridine, amine and imine functional groups have been prepared. It has been shown that prearrangement leads to essential improvement of basic sorption and catalytic properties of the crosslinked complexing polymers - sorption capacity, the rate of uptake, selectivity and catalytic activity