ps,w is 0 or 1;x is an integer of 1 or more,y is 0 or 1, andz is 0 or 1,- random copolymeric comb steric stabilizers being defined by the following formula:R1-(Z)m-(Q)n-R2where R1 and R2 are terminating groups and may be the same or different and will be different from Z and Q,Z is a hydrophobic moiety having a solubility of less than 1% in water at 25??C,Q is a hydrophilic moiety, having a solubi