Polydiorganosiloxane polyoxamide copolymers

An article comprising a copolymer comprising at least two repeat units of Formula I:

• wherein
• each R1 is independently an alkyl, haloalkyl, aralkyl, alkenyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo;
• each Y is independently an alkylene, aralkylene, or a combination thereof;
• G is a divalent residue equal to a diamine of formula R3HN-G-NHR3 minus the two —NHR3 groups;
• R3 is hydrogen or alkyl or R3 taken together with G and with the nitrogen to which they are both attached forms a heterocyclic group;
• n is independently an integer of 0 to 1500;
• and
• p is an integer of 1 to 10,
• wherein the article is in the form of a particle, a droplet, a pellet, a sphere, a strand, a ribbon, a rod, a tube, a film, or a sheet.

A method of preparing an article comprising:

• preparing a reaction mixture comprising:
• a) a precursor of Formula II
• wherein
• each R1 is independently an alkyl, haloalkyl, aralkyl, alkenyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo;
• each R2 is independently an alkyl, haloalkyl, aryl, or aryl substituted with an alkyl, alkoxy, halo, or alkoxycarbonyl;
• each Y is independently an alkylene, aralkylene, or a combination thereof;
• n is independently an integer of 0 to 1500;
• and
• p is an integer of 1 to 10;
• and
• b) a diamine of formula R3HN-G-NHR3,
• wherein
• G is a divalent residue unit equal to the diamine minus the two —NHR3 groups;
• and
• R3 is hydrogen or alkyl or R3 taken together with G and with the nitrogen to which they are both attached forms a heterocyclic group;
• mixing the reaction mixture;
• forming the reaction mixture;
• and
• partially or completely polymerizing.