Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1995-01-31
1995-11-28
Nagumo, Mark
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526118, 526135, 526145, 526147, 525269, C08F 450
Patent
active
054709288
ABSTRACT:
The invention describes a redox initiating system consisting of Cu.sup.II salts, enolizable aldehydes and ketones, and various combinations of coordinating agents for Cu.sup.II, coordinating agents for Cu.sup.I, and a strong amine base that is not oxidized by Cu.sup.II. In particular, Cu.sup.II octanoate/dibenzyl ketone/pyridine/triethylamine/triphenylphosphine systems are effective. In addition to initiating free radical polymerizations and copolymerizations, this initiating system can be applied to the synthesis of functionalized telechelics, polymers with ketone linkages in the backbone, block and graft copolymers consisting of free-radical and step-growth polymer blocks, and crosslinking reactions.
REFERENCES:
patent: 4009150 (1977-02-01), Norling
PhD Dissertation thesis by Stephen D. Goodrich, entitled "Investigation of Free Radical Polymerizations Initiated by Anaerobic Copper(II) Oxidation of Enolates derived from Aldehydes and Ketones", Univ. Microfilms Int.
Goodrich Stephen D.
Harwood H. James
Nagumo Mark
University of Akron
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