Alkenylfluorocyclo-triphosphazenes.
Abstract
Several alkenylfluorocyclotriphosphazenes have been prepared and characterized. Oligomeric side products obtained in the reaction of propenyl lithium with N3P3F6 result from anionic attack on the propenyl phosphazene. The yield of oligomers is dependent on the grade of lithium used. The mono and disubstituted vinylether derivatives, N3P3F6-n (C(OR) = CH2)m (n = 1,2; R = CH3, C2H5) were prepared from N3P3F6 and the appropriate lithium reagent. Oligomeric side products are not observed. The reaction follows a geminal pathway. Reactions leading to mixed substituent derivatives, N3P3F4X(C(OC2H5) = CH2) (X = C6H5, N(CH3)2), have been carried out and a directive effect based on the ring substituent has been observed. Copolymerization of N3P3F5C(OC2H5) = CH2 with styrene has been investigated. Nmr (1H, 13C, 19F, 31P) spectroscopy studies allowed for both structural characterization and elucidation of charge distribution in the various alkenyl moieties. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1981
- Accession Number
- ADA099980
Entities
People
- Christopher W. Allen
- Kokillara Ramachandran
- Randall P. Bright
Organizations
- University of Vermont