Hybrids by cluster complex-initiated polymerization

Xiaoyan Tu, Gary S. Nichol, Pei Keng, Jeffrey Pyun, Zhiping Zheng

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Two [Re 6Se 8] 2+ core-containing cluster complexes with a ligand capable of initiating controlled radical polymerization were prepared. The potential of using such cluster complexes to create cluster-containing hybrids was demonstrated by the polymerization of MMA with one of these complexes as initiator. The synthesis of the organic initiator (pyridin-4-ylmethyl 2-bromo-2-methylpropanoate) was achieved by acylation of pyridine-4-methanol with α-bromoisobutyryl bromide. Originally obtained using CH 2Cl 2 as solvent produced a complex mixture, from which pure product was obtained by chromatographic separation. Significant improvement was achieved by substituting 2,2'-dipyridyl for pentamethyldiethylenetriamine (PMDEA) as ligand for the Cu(I) catalysts and dimethylformamide (DMF) for acetonitrile (CH 3CN) as solvent; both are less coordinating toward the cluster core.

Original languageEnglish (US)
Pages (from-to)2614-2618
Number of pages5
JournalMacromolecules
Volume45
Issue number5
DOIs
StatePublished - Mar 13 2012

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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