Ionomer compositions for golf balls

A golf ball, comprising:

• a core comprising a center and a peptizer selected from a heteroaryl or heterocyclic compound having at least one heteroatom;
• an outer cover layer;
• and
• optionally one or more intermediate layers,
• wherein at least one or more of the core, outer cover layer, or one or more intermediate layers if present, comprises a sulfonated polyisoprene ionomer having a PGA compression value of from about 30 to about 200, when formed into a sphere, and a general formula
• where A is an isoprene repeating unit having, prior to reaction with a sulfonate moiety, a formula—(CH2—C(CH3)═CH—CH2)—, B is the isoprene repeating unit or other monomer repeating unit, m is greater than 10, and n is greater than 2, and each X independently is selected from
• an ammonium cation having the general formula [NR1R2R3R4]+ where R1, R2, R3 and R4 are selected from the group consisting of hydrogen, a C1-C20 aliphatic, cycloaliphatic, an aromatic moiety, and any and all combinations thereof.

A golf ball, comprising:

• a core comprising a center and 2,3,5,6-tetrachloro-4-pyridinethiol;
• optionally one or more intermediate layers;
• and
• an outer cover layer comprising a sulfonated polyisoprene ionomer having a PGA compression value of from about 30 to about 200, when formed into a sphere, and a general formula
• where A is an isoprene repeating unit having, prior to reaction with a sulfonate moiety, a formula—(CH2—C(CH3)═CH—CH2)—, B is the isoprene repeating unit or other monomer repeating unit, m is greater than 10, and n is greater than 2, and each X independently is selected from
• an ammonium cation selected from methylammonium, dimethylammonium, trimethylammonium, ethylammonium, diethylammonium, triethylammonium, trihydroxymethylamine, an alcohol or alkoxy substituted ammonium cation derived from dihydroxymethylamine, monohydroxymethylamine, monoethanolammonium, di-ethanolammonium, triethanolammonium, N-methylmonoethanol-ammonium, N-methyldiethanolammonium, monopropanolammonium, dipropanolammonium and tripropanolammonium.