Polyurea macromer and latexes thereof

A composition comprising a) a stable aqueous dispersion of polymer particles having one or more structural units of i) a polyurea macromer;

• and ii) an acrylate, a methacrylate, a vinyl ester, or a styrene monomer, or a combination thereof;
• and/or b) an aqueous mixture of a i) polyurea macromer particles and b) acrylate, methacrylate, vinyl ester, or styrenic polymer particles, or a combination thereof, wherein the polyurea macromer is characterized by the following formula I:
• wherein n is 1 to 20;
• R1, R2, and R3 are each independently a C2-C20 alkanediyl group, a C3-C20 cycloalkanediyl group, a C6-C20 arenediyl group, or a C7-C20 aralkanediyl group;
• X and Y are independently O or NR4, wherein R4 is H or C1-C6-alkyl, with the proviso that at least one of X and Y is NH;
• at least one of A1 and A2 is —C(O)—(Z)m—R5;
• —CH2CH(OH)R6;
• —CR7═CH—C(O)O(CH2)pR8;
• —C(O)—Y′—(CH2)pR9;
• or CH2—CH2—C(O)—O—R10;
• wherein each R5 is independently a C2-C20 alkyl group, a C3-C20 cycloalkyl group, a C6-C20 aryl group, or a C7-C20 aralkyl group, with the proviso that at least one R5 is functionalized with a carboxylic acid group or a polymerizable olefin group or both;
• each R6 is independently —CH2-acrylate, —CH2-methacrylate, or —(CH2)p—COOH;
• each R7 is independently H or CH3;
• each R8 is independently an acrylate group, a methacrylate group, or COOH;
• each R9 is independently an acrylate group or a methacrylate group;
• each R10 is independently H or —CH2CH═CH2;
• Y′ is O or NR4;
• m is 0 or 1;
• each p is independently from 2 to 6;
• and
• the compound has an Mn in the range of 500 to 8,000 Daltons.