Graft copolymers of hydrocarbons and small ring heterocyclic com

Details Graft copolymers of hydrocarbons and small ring heterocyclic com Graft copolymers of hydrocarbons and small ring heterocyclic com

1976-06-14

1979-01-23

Ziegler, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260823, 260877, 260879, 260880R, 260884, 260886, 260887, 260888, 260889, 260890, 260892, 260896, 260897A, 260899, 260900, C08L 2300, C08L 2700

Patent

active

041361369

ABSTRACT:
Disclosed are novel graft copolymers comprising hydrocarbon backbones and polymerized small ring heterocyclic compounds. The backbones are devoid of O, N or S in the main chain and include SBR, polybutadiene, butyl rubber, neoprene, EPDM, EPM, PVC, and the like. The hetero atom of the graft branches may be O, S or N as well as combinations thereof and include compounds such as ethers, formals, lactones, sulfides and amines. The invention also relates to a process for cationic grafting of the heterocyclic monomers from the backbone which includes the steps of: substituting a plurality of halogen groups onto the backbone; charging a reaction vessel with the halogenated backbone and the heterocyclic monomer in the presence of a suitable solvent where necessary; mixing the contents thereof to allow at least a portion of the backbone to dissolve in the monomer; adding a suitable salt, which in the presence of an organic halide, such as the halogenated backbone, will polymerize the heterocyclic compound; agitating the contents of the reaction vessel so as to disperse the salt throughout the contents facilitating polymerization; and finally, terminating polymerization and extracting the graft copolymer from the remaining contents via conventional techniques.

REFERENCES:
patent: 3824197 (1974-07-01), Smith et al.
patent: 3928501 (1975-12-01), Vandenberg
"Ring-Opening Polymerization", K. C. Frisch & S. L. Reegen, Ed., Marcel Dekker, Inc. N. Y. (1969).

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