Abstract:A B S T R A C TRate constants (ki, kll, k12, k22, kZ1, and k ) for various steps involved in the copolymerization of propylene oxide (PO) with tetrahydrofuran (THF) have been calculated from reaction rate data obtained with the following catalyst system: (a) triphenylmethyl cations ((C& )sC') associated with hexafluorophosphate (PFa-), hexafluoroarsenate (As&-) and hexafluoroantimonate (SbFe-) gegenions; (b) antimony pentachloride (SbCl5 ); and, (c) boron trifluoride etherate, BFs:(C2Hs )aO. The latter two sys… Show more
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