This collection is the 4th issue of the Research Institute of Monomers for Synthetic Rubber. The collection presents some of the results of studies carried out at NIIMSK in recent years in the field of chemistry and technology for the production of basic and auxiliary monomers for SK (butadiene, isoprene, isobutylene, styrene, cycloolefins, monomers with functional groups), as well as rubbers and latexes for various purposes.