Accession Number : ADA309784

Title :   Kinetic Investigation of the Atom Transfer Radical Polymerization of Styrene in Homogeneous Systems.

Descriptive Note : Technical rept.,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF CHEMISTRY

Personal Author(s) : Xia, J. ; Matyjaszewski, K.

PDF Url : ADA309784

Report Date : 12 JUN 1996

Pagination or Media Count : 5

Abstract : Controlled/'Living' radical polymerization allows for the preparation of complex polymer architectures, end functional polymers and block copolymers. Recently, we reported atom transfer radical polymerization (ATRP), a novel route to the controlled - 'Living' - radical polymerization in which polymers with predetermined molecular weight up to Mn =100,000 and polydispersity as narrow as 1.05 have been obtained. In this paper, the kinetic scheme of atom transfer radical polymerization of styrene under homogeneous conditions is described. The polymerization was determined to be first order with respect to the concentration of monomer, initiator and Cu(I) halide. From the effect of the ratio of ligand to Cu(I) halide, possible active copper complex was proposed.

Descriptors :   *POLYMERIZATION, *STYRENES, REACTION KINETICS, BLOCK COPOLYMERS, MOLECULAR WEIGHT, COPPER COMPOUNDS, HOMOGENEITY.

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE