alized sulfonate groups per 100 grams of said sulfonated polymer and said polycaprolactone polymer having the formula; ##STR3## wherein R1 or R2 is an alkyl, cycloalkyl or aryl group, R3, R4 and R5 are a hydrogen or alkyl, cycloalkyl, or aryl groups, m equals 1 to 20 and n equals about 1 to about 500.