Sulfonated polyoxyalkylene ethers of 1,2 or 1,3-diols, their preparation and use

摘要

Sulfonated polyoxyalkylene ethers of the formula R1CH2O-(C2H4O-)n(C3H6O-)mCH2CHR3CH2-SO3X in which R1 is <IMAGE> R2 is CH3-, C2H5-, or C3H7-, R3 is H- or CH3-, X is H-, alkali metal or ammonium ion, n is 0 to 100, m is 0 to 50, and n+m is not less than 1. The compounds are prepared by adding a compound of formula HSO3X in a known manner by a free radical reaction in the presence of catalysts and optionally at an elevated temperature to compounds of the formula R1CH2O-(C2H4O-)n(C3H6O-)mCH2CHR3=CH2. The inventive compounds can be used as the only or a partial polyol component for the preparation of curable, polyurethane-based adhesives and increase the combined tensile and shear strength and the floating roller peel strength of the adhesive bonds.