Initiation of anionic polymerization of vinyl monomers by reduce

Details Initiation of anionic polymerization of vinyl monomers by reduce Initiation of anionic polymerization of vinyl monomers by reduce

1979-11-23

1981-01-20

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526316, 526328, 5263297, 526341, 526346, C08F 400

Patent

active

042463882

ABSTRACT:
The invention is a process for anionically polymerizing vinyl monomers comprising contacting a vinyl monomer with an electrolytically reduced graphite having formed therein a Graphite R.sub.4 N.sup.+ intercalation compound wherein Graphite is a graphite anion radical and each R is alkyl, preferably alkyl having not more than 8 carbon atoms, to form vinyl polymer. The reduced graphite for polymerizing the vinyl monomers is prepared by electrochemical reduction of a graphite cathode in a polar aprotic solvent containing a quaternary ammonium salt electrolyte to form a graphite anion associated with a quaternary ammonium cation intercalated in the graphite. When the electrolysis is completed the graphite cathode is removed from the electrolysis cell, rinsed and contacted with vinyl monomer either dissolved in a solvent or neat to cause the polymer formation.

REFERENCES:
patent: 3032542 (1962-05-01), Goode
patent: 4130703 (1978-12-01), Rashkov et al.
G. Merle et al., J. Poly. Sci. Poly. Chem., 15, pp. 2067-2074 (1977).
J. Simonet and H. Lund, J. Electroanal. Chem., 75, pp. 719-730 (1977).
J. O. Besenhard, Carbon, 14, pp. 111-115 (1976).

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