Phosphono-phosphate containing compounds and polymers

A polymer having a structure of Formula 16:

• wherein:
• R1 is selected from the group consisting of —H and —CH3;
• R2 is selected from the group consisting of —H, alkyl, alkanediyl-alkoxy, Na, K, Ca, Mg, Mn, Zn, Fe, or Sn cation, amine cation, and a structure of Formula 2:
• wherein:
• δ is a site of attachment to Formula 16,
• R5 and R6 are independently selected from the group consisting of —H, alkyl, alkanediyl-alkoxy, Na, K, Ca, Mg, Mn, Zn, Fe, or Sn cation, and amine cation;
• R3 is selected from the group consisting of —H, alkyl, alkanediyl-alkoxy, Na, K, Ca, Mg, Mn, Zn, Fe, or Sn cation, amine cation salt, and a structure of Formula 3:
• wherein:
• δ is the site a site of attachment to Formula 16,
• R7, and R8 are independently selected from the group consisting of —H, alkyl, alkanediyl-alkoxy, metal salt having Na, K, Ca, Mg, Mn, Zn, Fe, or Sn cation, and amine cation, and
• n is an integer from 1 to 22;
• R4 is selected from the group consisting of —H, alkyl, alkanediyl-alkoxy, Na, K, Ca, Mg, Mn, Zn, Fe, or Sn cation, and amine cation;
• R18 is a chemical group resulting from polymer initiation;
• R19 is a chemical group resulting from chain termination;
• M2 is selected from the group consisting of a chemical bond and a post polymerization residue of one or more co-monomers;
• m is an integer from 2 to 450;
• and
• L is selected from the group consisting of a chemical bond, arenediyl, and a structure of Formula 4:
• wherein:
• α is a site of attachment to an alkylene diradical;
• β is the site a site of attachment to a phosphono-phosphate radical;
• X is selected from the group consisting of the structures represented by Formulas 5-11;
• wherein:
• R9 is selected from the group consisting of —H, alkyl(C1-8), phosphonoalkyl, and phosphono(phosphate)alkyl;
• and
• Y is selected from the group consisting of alkanediyl, alkoxydiyl, alkylaminodiyl, and alkenediyl.