Free radical copper(II)-enolate polymerization initiators

Details Free radical copper(II)-enolate polymerization initiators Free radical copper(II)-enolate polymerization initiators

1993-03-22

1995-04-11

Nagumo, Mark

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525269, 525299, 525314, 526118, 526135, 526145, 526147, 526172, 526247, 526255, 526295, 526297, 5263031, 526319, 526320, 526328, 526341, 526343, 526344, 526346, 5263471, 526335, C08F 450, C08F29300

Patent

active

054059135

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 Stephen D. Goodrich "Investigation of Free Radical Polymerization Initiated by Anaerobic Copper(II)Oxidation of Enolates derived from Aldehydes and Ketones".

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