Synthesis of macromonomers via catalytic chain transfer (CCT) polymerization and their characterization via NMR spectroscopy and electrospray ionization mass spectrometry (ESI-MS)

T. Y.Joan Chiu, Johan P.A. Heuts, Thomas P. Davis, Martina H. Stenzel, Christopher Barner-Kowollik

Research output: Contribution to journalArticleResearchpeer-review

21 Citations (Scopus)

Abstract

Macromonomers consisting of a butyl acrylate (BA) tail and α-methyl styrene (AMS) or benzyl methacrylate (BzMA) unsaturated termini were synthesized via catalytic chain transfer (CCT) polymerization employing the low spin bis(difluoroboryl)dimethylglyoximato cobalt (II) (COBF) complex. The structures of the generated macromonomers were characterized via 1H and 13C NMR spectroscopy and electrospray ionization mass spectrometry (ESI-MS). A variety of low molecular weight (Mn < 4 000 g · mol-1) BA/AMS and BA/BzMA macromonomers were generated by varying the reactions conditions. The generated BA/AMS macromonomers are shown to be terminated by an AMS moiety while consisting of n units of BA plus 1 to 3 units of AMS. The structures of the synthesized BA/BzMA macromonomers give a more complex mixture. Apart from BzMA terminated macromonomer chains consisting of n units of BA plus 1 to 3 units of BzMA, pure BA macromonomers were also generated.

Original languageEnglish
Pages (from-to)752-761
Number of pages10
JournalMacromolecular Chemistry and Physics
Volume205
Issue number6
DOIs
Publication statusPublished - 23 Apr 2004
Externally publishedYes

Keywords

  • Catalytic chain transfer (CCT) polymerization
  • Electrospray ionization mass spectrometry
  • Macromonomers
  • Radical polymerization

Cite this