Polymeric dispersants prepared from copolymers of low molecular weight polyisobutene and unsaturated acidic reagent

One or more copolymers having the general formula:

• wherein:
• the copolymers are liquid at ambient temperature;
• n comprises a whole integer from 1 to 3;
• one of R1 and R2comprises methyl and the other of R1 and R2 comprises polyisobutyl having about 5 to about 25 carbon atoms;
• m comprises a whole integer of from 1 to 3;
• x comprises a whole integer of from 1 to 20;
• Int. comprises one or more initiating radicals;
• and
• Ter. comprises one or more terminating groups.

One or more polymers having the general formula of:

• wherein:
• W comprises one or more of:
• wherein:
• R comprises at least one of one or more polyalkyls and one or more polyalkenes, wherein the polyalkyls and polyalkenes each have a molecular weight of at least 1000;
• one of R1 and R2comprises methyl and the other of R1 and R2 comprises polyisobutyl having about 5 to about 25 carbon atoms;
• Z comprises a polyamine linking radical
• m comprises a whole integer of from 1 to 3;
• n comprises a whole integer of from 1 to 3;
• x comprises a whole integer of from 1 to 20;
• Int. comprises one or more initiating radicals;
• Ter. comprises one or more terminating groups;
• and
• wherein R3 and R4 are independently hydrogen, alkyl, phenyl, or taken together are alkylene to give a ring group.

One or more succinimides prepared by reacting a mixture under reactive conditions wherein the mixture comprises:

• a. one or more of an alkenyl acid derivative and an alkylsuccinic acid derivative,
• b. one or more copolymers of
• (1) one or more unsaturated acidic reagents and
• (2) one or more polyisobutenes having about 5 to about 25 carbon atoms, and
• c. one or more polyamine.