Photographic silver halide materials containing sulfur containing polymers

A photographic element comprising a support and at least one photosensitive silver halide emulsion layer, characterised in that said silver halide emulsion layer contains at least one polymer containing polymerised units of at least one compound A and at least one compound B which correspond to the following formulae:

• ##STR19## in which R.sup.1 represents hydrogen or an alkyl group;
• R.sup.2 represents hydrogen or an alkoxy carbonyl or carboxyl group;
• R.sup.3 represents hydrogen or an alkyl;
• cycloalkyl;
• aralkyl or aryl group a heterocyclic radical;
• or a carboxyl or alkoxy carbonyl group;
• Y represents --O-- or NR.sup.4 --;
• R.sup.4 represents hydrogen or an alkyl or hydroxy alkyl group;
• Z represents a difunctional organic radical;
• X represents hydrogen, a hydroxy group;
• an --O-alkyl;
• --S-alkyl;
• --SO-alkyl or --CO-alkyl group, a carboxyl group or a --CONR.sup.5 R.sup.6 ;
• NR.sup.5 R.sup.6 or --SO.sub.3 M group or a heterocyclic group;
• R.sup.5 and R.sup.6 which may be the same or different represent alkyl groups or, together, represent the atoms required to complete a heterocyclic group;
• M represents hydrogen or a cation;
• n=0 or 1;
• s=0 or 1;
• W represents a difunctional hydrocarbon radical which may be interrupted by at least one heteroatom;
• and/or
• R.sup.4 together with Z and/or X represents the atoms required to complete a heterocyclic ring.