摘要:
A process for the preparation of graft copolymer which comprises graft-copolymerizing at least one ethylenically unsaturated monomer (C) to a substratum polymer (AB) having pendant double bond, said substratum polymer (AB) being prepared from at least one comonomer (A) expressed by the following general formula
WHEREIN X is -OH, -O-CH2-CH2-OH, -O-CH2-CH(CH3)-OH, -O-CH(CH3)CH2-OH, -O-CH2-CH2-NH2 or -NH2, and at least one ethylenically unsaturated monomer (B).
摘要:
A METHOD OF POLYMERIZING ALKYLENE OXIDES WHICH COMPRISES USING AS CATALYST A REACTION PRODUCT OBTAINED BY REACTING AN ALKALI METAL ENOLATE WITH A REAGENT SELECTED FROM THE GROUP CONSISTING OF THE GRIGNARD REAGENTS AND THE BLAISE REAGENTS, SAID REACTION PRODUCT BEING USED IN AN AMOUNT IN THE RANGE OF 0.01-10 MOL PERCENT BASED ON THE MONOMERIC ALKYLENE OXIDE.