A Convenient NMR Method for the Measurement of Lewis Acidity at Boron Centers - Correlation of Reaction-Rates of Lewis-Acid Initiated Epoxide Polymerizations with Lewis Acidity

Beckett MA; Strickland GC; Holland JR; Varma KS

Polymer, Vol.37, No.20, 4629-4631, 1996

DOI10.1016/0032-3861(96)00323-0 Export Citation

A Convenient NMR Method for the Measurement of Lewis Acidity at Boron Centers - Correlation of Reaction-Rates of Lewis-Acid Initiated Epoxide Polymerizations with Lewis Acidity

Beckett MA, Strickland GC, Holland JR, Varma KS

The reaction rates from viscosity measurements of Lewis acid catalysed epoxide (oxirane) polymerizations have been correlated with Gutmann’s Acceptor Number (AN) scale derived from measurement of P-31 n.m.r. chemical shifts of Et(3)PO (TPO) dissolved in the boron-containing Lewis acid.

Keywords:ACCEPTOR