ISSN:
0887-624X
Keywords:
polyphosphazenes
;
phosphoranimines
;
copolyphosphazenes
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A series of phosphites were prepared bearing various combinations of phenoxy, methoxy, and trifluoroethoxy substituents. (PhO)3P, (CF3CH2O)(PhO)2P, (CF3CH2O)2(PhO)P, and (CH3OCH2CH2O)(PhO)2P were polymerized during the course of the Staudinger reaction with azidotrimethylsilane to form low molecular weight polyphosphazenes. Similar reactions with (CH3O)(CF3CH2O)2P, (CH3O)(PhO)2P, (CH3O)2(CF3CH2O)P, (CH3O)2(PhO)P, and (CH3O)3P produced the desired phosphoranimine as well as the corresponding phosphoramidate isomer. Studies were performed on these systems in order to understand the nature of this isomerization. (CH3O)(PhO)2P (DOUBLE BOND) N (SINGLE BOND) Si(CH3)3 and (CH3O)2(PhO)P (DOUBLE BOND) N (SINGLE BOND) Si(CH3)3 polymerize at temperatures above 150°C. © 1996 John Wiley & Sons, Inc.
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
