Abstract: Polymerizable monomers of structure ##STR1## wherein R.sub.1 and R.sub.2 are C.sub.2-3 alkylene groups, the same or different; A and B are substituted C.sub.2-18 alkyl groups at least one group A or B comprising in a substituent a polymerizable ethylenically unsaturated group; and X=H, C.sub.1-18 alkyl or ##STR2## the monomers being substantially free from non-polymerizable water-soluble contaminants; processes of manufacture and derived polymers including copolymers; and aqueous polymer dispersions, their manufacture and use in coatings including paints.

Abstract: Polymerizable monomers of structure ##STR1## wherein R.sub.1 and R.sub.2 are C.sub.2-3 alkylene groups, the same or different; A and B are substituted C.sub.2-18 alkyl groups at least one group A or B comprising in a substituent a polymerizable ethylenically unsaturated group; ane X=H, C.sub.1-18 alkyl or ##STR2## the monomers being substantially free from non-polymerizable water-soluble contaminants; processes of manufacture and derived polymers including copolymers; and aqueous polymer dispersions, their manufacture and use in coatings including paints.

Abstract: Polymerizable monomers of structure ##STR1## wherein R.sub.1 and R.sub.2 are C.sub.2-3 alkylene groups, the same or different; A and B are substituted C.sub.2-18 alkyl groups at least one group A or B comprising in a substituent a polymerizable ethylenically unsaturated group; and x=H, C.sub.1-18 alkyl or ##STR2## the monomers being substantially free from non-polymerizable water-soluble contaminants; processes of manufacture and derived polymers including copolymers; and aqueous polymer dispersions, their manufacture and use in coatings including paints.