Determination of Monomer Reactivity Ratios in the Copolymerization of Ethylene Oxide and Propylene Oxide

1994 ◽  
Vol 31 (1) ◽  
pp. 9-11
Author(s):  
M. Adal ◽  
P. Flodin ◽  
E. Gottberg-Klingskog ◽  
K. Holmberg
Keyword(s):  
Ethylene Oxide ◽  
Propylene Oxide ◽  
Reactivity Ratios ◽  
Monomer Reactivity Ratios

The poly(propylene oxide-co-ethylene oxide) gradient is controlled by the polymerization method: determination of reactivity ratios by direct comparison of different copolymerization models

2019 ◽  
Vol 10 (22) ◽  
pp. 2863-2871 ◽  
Author(s):  
Jan Blankenburg ◽  
Erik Kersten ◽  
Kamil Maciol ◽  
Manfred Wagner ◽  
Sirus Zarbakhsh ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Ethylene Oxide ◽  
Propylene Oxide ◽  
Reactivity Ratios ◽  
H Nmr ◽  
Poly Propylene ◽  
Polymerization Method

An investigation of the copolymerization of EO and PO by in situ1H NMR spectroscopy reveals striking differences in the monomer gradient, depending on the polymerization method.

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