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Atom transfer radical polymerization using multidentate amine ligands supported on soluble hyperbranched polyglycidol

TitleAtom transfer radical polymerization using multidentate amine ligands supported on soluble hyperbranched polyglycidol
Publication TypeJournal Article
Year of Publication2004
AuthorsKumar, KR, Kizhakkedathu, JN, Brooks, DE
JournalMacromolecular Chemistry and Physics
Volume205
Pagination567-573
Date PublishedMar
Type of ArticleArticle
ISBN Number1022-1352
KeywordsAMBIENT-TEMPERATURE, atom transfer radical polymerization (ATRP), ATRP, branched, CATALYST, CATALYSTS, COPPER BROMIDE, DENDRIMERS, METHYL-METHACRYLATE, polystyrene, ROMP
Abstract

Controlled polymerization of styrene in toluene was achieved by atom transfer radical polymerization (ATRP) using hyperbranched polyglycidol-supported multidentate amine ligands/(CuBr)-Br-I catalyst systems. These catalyst systems with nanoscopic dimensions were more active than the corresponding low-molecular-weight ligands. The controlled/living nature of the polymerization is supported by linear first order plots (ln[M](o)/[M] versus time) and a linear increase of (M) over bar (n) versus conversion as well as low polydispersity. Similar controlled polymerization of methyl methacrylate was possible in acetonitrile. Up to 97% of total copper used for polymerization could be removed from the polymer by simple precipitation in methanol and filtration.

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