4-dimethylaminopyridine (dmap): catalyst star in the polyurethane industry in the vast starry sky of the polyurethane industry, 4-dimethylaminopyridine (dmap) is undoubtedly one of the dazzling stars. it is like a skilled conductor, freely acting on the stage of chemical reactions, accurately guiding the perfect encounter between various molecules. as an important tertiary amine catalyst, dmap...