Process for the living anionic polymerization of alkyl (methacry

Details Process for the living anionic polymerization of alkyl (methacry Process for the living anionic polymerization of alkyl (methacry

1996-12-27

1999-10-26

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526174, 526180, 526181, 526182, 526183, 526190, 526220, 5263297, C08F 410, C08F 2014

Patent

active

059730862

ABSTRACT:
A process for the living anionic polymerization of alkyl(meth)acrylic monomers, involving polymerizing the monomers in the presence of an initiator comprising a carbanion and a metal or nonmetal salt of perchloric acid. The initiator has the formula (I): ##STR1## wherein R.sub.1 =a linear or branched alkyl group having one to six carbon atoms, R.sub.2 =a phenyl or alkyl group having one to six carbon atoms, R.sub.3 =a phenyl or an ester group and M.sup.+ is an alkali, alkaline earth metal or quarternary ammonium cation containing 1-8 carbon atoms in an alkyl group thereof.

REFERENCES:
patent: 4201729 (1980-05-01), Tung et al.
patent: 4767824 (1988-08-01), Ouhadi et al.
patent: 5057583 (1991-10-01), Tung et al.

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