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Titolo:
Controlled radical polymerization catalyzed by copper(I)-sparteine complexes
Autore:
Yu, B; Ruckenstein, E;
Indirizzi:
SUNY Albany, Dept Chem Engn, Buffalo, NY 14260 USA SUNY Albany Buffalo NYUSA 14260 y, Dept Chem Engn, Buffalo, NY 14260 USA
Titolo Testata:
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
fascicolo: 22, volume: 37, anno: 1999,
pagine: 4191 - 4197
SICI:
0887-624X(19991115)37:22<4191:CRPCBC>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
ARENESULFONYL CHLORIDES; METHYL-METHACRYLATE; STYRENE; ACRYLATES; HALIDES;
Keywords:
controlled radical polymerization; sparteine; styrene; methyl methacrylate;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Ruckenstein, E SUNY Albany, Dept Chem Engn, 303 Furnas Hall, Buffalo, NY 14260 USA SUNY Albany 303 Furnas Hall Buffalo NY USA 14260 14260 USA
Citazione:
B. Yu e E. Ruckenstein, "Controlled radical polymerization catalyzed by copper(I)-sparteine complexes", J POL SC PC, 37(22), 1999, pp. 4191-4197

Abstract

Sparteine was found to be an efficient ligand because when complexed with copper(I) halide it generated a homogeneous catalyst for the atom transfer radical polymerization of styrene or methyl methacrylate, which was initiated by (1-bromoethyl)benzene in the former case and by p-toluenesulfonyl chloride in the latter. The plots of ln([M](o)/[M]) versus time and molecular weight versus monomer conversion exhibited linear dependencies, which indicated that the concentration of the living centers throughout polymerizationwas constant. The polydispersities of polystyrene and poly(methyl methacrylate) in both the bulk and solution polymerizations were quite low. An induction time was observed during the bulk polymerization of styrene; however,it was absent during the solution polymerization. (C) 1999 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 20:39:26