Process for the polymerization of olefinic-containing monomers employing anionic initiators

Siloxy-terminated hydrocarbon polymer containing at least one polymer chain per molecule of formula V ##STR9## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from saturated and unsaturated aliphatic and aromatic radicals, A is --(CH.sub.2).sub.m --where m is an integer from 3 to 15 and --(M).sub.n -- represents a polymer of an olefinic containing monomer, n having a value such that the average molecular weight of the polymeric chain is from about 1000 to about 5,000,000.

Siloxy-terminated hydrocarbon polymer containing at least one polymer chain per molecule of formula V ##STR10## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from saturated and unsaturated aliphatic and aromatic radicals, A is a saturated hydrocarbon bridging group optionally containing at least one aromatic group and --(M).sub.n -- represents a polymer of an olefinic containing monomer, n having a value such that the average molecular weight of the polymeric chain is from about 1000 to about 5,000,000 and wherein said polymer has a 1,4-content of about 90%.

Siloxy-terminated hydrocarbon polymer containing at least one polymer per chain per molecule of formula VII ##STR11## where R.sup.1, R.sup.2 and R.sup.3 are independently selected from saturated and unsaturated aliphatic and aromatic radicals, A is --(CH.sub.2).sub.m -- where m is an integer from 3 to 15, --(M).sub.n -- represents a polymer of an olefinic-containing monomer, n having a value such that the average molecular weight of the polymeric chain is from about 1000 to 5,000,000 and Y is the residue of a multi-functional halide coupling agent containing q functional halide groups where q is an integer from 3 to 20, and r is an integer of at least 3 which is less than or equal to q.

Siloxy-terminated hydrocarbon polymer containing at least one polymer chain per molecule of formula VII ##STR12## where R.sup.1, R.sup.2 and R.sup.3 are independently selected from saturated and unsaturated aliphatic and aromatic radicals, A is a saturated hydrocarbon group optionally containing at least one aromatic group, --(M).sub.n -- represents a polymer of an olefinic-containing monomer, n having a value such that the average molecular weight of the polymeric chain is from about 1000 to 5,000,000, Y is the residue of the multi-functional halide coupling agent silicon tetrachloride and r is an integer of at least 3.

Siloxy-terminated hydrocarbon polymer containing at least one polymer chain per molecule of formula VII ##STR13## where R.sup.1, R.sup.2 and R.sup.3 are independently selected from saturated and unsaturated aliphatic and aromatic radicals, A is a saturated hydrocarbon group optionally containing at least one aromatic group, --(M).sub.n -- represents a polymer of au olefinic-containing monomer, n having a value such that the average molecular weight of the polymeric chain is from about 1000 to 5,000,000 and Y is the residue of a multi-functional halide coupling agent containing q functional halide groups where q is an integer from 3 to 20, and r is an integer of at least 3 which is less than or equal to q, wherein said polymer has a polydispersivity of about 1.1 and a 1,4-content of about 90%.