Investigation of the mechanism of living cationic polymerization of isobutylene by B11 NMR spectroscopy

M. Zsuga, Tibor Kelen, J. Borbély

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The living carbocationic polymerization of isobutylene initiated by tri-cumyl-ether (1)/BCl3 and tricumyl-acetate(2)/BCl3 was investigated by B11 NMR spectroscopy in the presence and absence of DMSO. With BCl3, 1 yields tri-cumyl-chloride and BCl2OMe due to fast exchange reaction, while 2 forms complexes. If the 1/BCl3 mixture contains DMSO, well defined complexes can be detected, i.e., DMSO.BCl3 and BCl2OMe.DMSO. In the system 2/BCl3/DMSO neutral complexes with broad NMR signals are formed. In the presence of isobutylene (real polymerization mixture) the same complexes can be detected.

Original languageEnglish
Pages (from-to)417-422
Number of pages6
JournalPolymer Bulletin
Volume26
Issue number4
DOIs
Publication statusPublished - Aug 1991

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Cationic polymerization
Living polymerization
butenes
Dimethyl Sulfoxide
Nuclear magnetic resonance spectroscopy
polymerization
nuclear magnetic resonance
spectroscopy
acetates
Ethers
ethers
chlorides
Polymerization
Nuclear magnetic resonance
Complex Mixtures
Ether
Chlorides
Acetates
isobutylene

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Investigation of the mechanism of living cationic polymerization of isobutylene by B11 NMR spectroscopy. / Zsuga, M.; Kelen, Tibor; Borbély, J.

In: Polymer Bulletin, Vol. 26, No. 4, 08.1991, p. 417-422.

Research output: Contribution to journalArticle

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