Process for producing .alpha., .beta.-unsaturated carboxylic aci

Details Process for producing .alpha., .beta.-unsaturated carboxylic aci Process for producing .alpha., .beta.-unsaturated carboxylic aci

1999-02-08

2000-02-29

Mosley-Boykin, Terressa

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

Synthetic resins

From carboxylic acid or derivative thereof

528271, C08G 6302

Patent

active

060310669

ABSTRACT:
An object is: to provide a novel, generally applicable polymerization initiator which can be prepared easily and which is highly stable, for application to the production of polymers and block copolymers of .alpha.,.beta.-unsaturated carboxylic acid esters; to polymerize .alpha.,.beta.-unsaturated carboxylic acid esters using the polymerization initiator; and to provide a novel, generally applicable production process for polymers and block copolymers of .alpha.,.beta.-unsaturated carboxylic acid esters having high molecular weight and little discoloration, by which active hydrogen-containing monomers can be polymerized. This is achieved by a novel production process involving polymerization of various .alpha.,.beta.-ethylenically unsaturated carboxylic acid esters using as a polymerization initiator a polymer containing a tertiary amino group obtained by the polymerization of an .alpha.,.beta.-unsaturated carboxylic acid ester containing a tertiary amino group, in the presence of a trivalent phosphorus compound.

REFERENCES:
Kuroki et al., "Polymer Preprints", The Society of Polymer Science, Japan, vol. 37, No. 6, pp. 1327-1329 (1988).
Sogah et al., "Group Transfer Polymerization. Polymerization of Acrylic Monomers", Macromolecules, 1987, vol. 20, pp. 1473-1488.

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