REACTIONS OF POLY(DIFLUOROPHOSPHAZENE) WITH ORGANOMETALLIC COMPOUNDS.

T. L. Evans, P. R. Suszko, D. B. Patterson, Harry R. Allcock

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

The synthesis of a soluble form of poly(difluorophosphazene), (NPF//2 )//n , has allowed for the preparation of a new class of organophosphazenes that have the general structure left bracket NP(R)//x (OCH//2 CF//3 )//y right bracket //n , where R equals phenyl, ethyl or butyl. These polymers were synthesized by the reactions of the (NPF//2 )//n with organolithium or organomagnesium compounds. Complete fluorine removal was accomplished by the use of sodium trifluoroethoxide as a second nucleophile. The existence of a chain-cleavage process and, in some cases a cross-linking reaction, prevented the synthesis of organic soluble, high molecular weight polymers that possessed exclusively aryl or alkyl substituents. Nevertheless, poly(difluorophosphazene) has been shown to exhibit greater resistance to chain cleavage processes by organometallic reagents than poly(dichlorophosphazene).

Original languageEnglish (US)
Pages (from-to)93-96
Number of pages4
JournalAmerican Chemical Society, Division of Organic Coatings and Plastics Chemistry, Preprints
Volume41
StatePublished - Jan 1 1979
EventPap Presented at Natl Meet of the Am Chem Soc, 178th - Washington, DC, USA
Duration: Sep 9 1979Sep 14 1979

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Organometallics
Nucleophiles
Polymers
Fluorine
Molecular weight
Sodium

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

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title = "REACTIONS OF POLY(DIFLUOROPHOSPHAZENE) WITH ORGANOMETALLIC COMPOUNDS.",
abstract = "The synthesis of a soluble form of poly(difluorophosphazene), (NPF//2 )//n , has allowed for the preparation of a new class of organophosphazenes that have the general structure left bracket NP(R)//x (OCH//2 CF//3 )//y right bracket //n , where R equals phenyl, ethyl or butyl. These polymers were synthesized by the reactions of the (NPF//2 )//n with organolithium or organomagnesium compounds. Complete fluorine removal was accomplished by the use of sodium trifluoroethoxide as a second nucleophile. The existence of a chain-cleavage process and, in some cases a cross-linking reaction, prevented the synthesis of organic soluble, high molecular weight polymers that possessed exclusively aryl or alkyl substituents. Nevertheless, poly(difluorophosphazene) has been shown to exhibit greater resistance to chain cleavage processes by organometallic reagents than poly(dichlorophosphazene).",
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REACTIONS OF POLY(DIFLUOROPHOSPHAZENE) WITH ORGANOMETALLIC COMPOUNDS. / Evans, T. L.; Suszko, P. R.; Patterson, D. B.; Allcock, Harry R.

In: American Chemical Society, Division of Organic Coatings and Plastics Chemistry, Preprints, Vol. 41, 01.01.1979, p. 93-96.

Research output: Contribution to journalConference article

TY - JOUR

T1 - REACTIONS OF POLY(DIFLUOROPHOSPHAZENE) WITH ORGANOMETALLIC COMPOUNDS.

AU - Evans, T. L.

AU - Suszko, P. R.

AU - Patterson, D. B.

AU - Allcock, Harry R.

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N2 - The synthesis of a soluble form of poly(difluorophosphazene), (NPF//2 )//n , has allowed for the preparation of a new class of organophosphazenes that have the general structure left bracket NP(R)//x (OCH//2 CF//3 )//y right bracket //n , where R equals phenyl, ethyl or butyl. These polymers were synthesized by the reactions of the (NPF//2 )//n with organolithium or organomagnesium compounds. Complete fluorine removal was accomplished by the use of sodium trifluoroethoxide as a second nucleophile. The existence of a chain-cleavage process and, in some cases a cross-linking reaction, prevented the synthesis of organic soluble, high molecular weight polymers that possessed exclusively aryl or alkyl substituents. Nevertheless, poly(difluorophosphazene) has been shown to exhibit greater resistance to chain cleavage processes by organometallic reagents than poly(dichlorophosphazene).

AB - The synthesis of a soluble form of poly(difluorophosphazene), (NPF//2 )//n , has allowed for the preparation of a new class of organophosphazenes that have the general structure left bracket NP(R)//x (OCH//2 CF//3 )//y right bracket //n , where R equals phenyl, ethyl or butyl. These polymers were synthesized by the reactions of the (NPF//2 )//n with organolithium or organomagnesium compounds. Complete fluorine removal was accomplished by the use of sodium trifluoroethoxide as a second nucleophile. The existence of a chain-cleavage process and, in some cases a cross-linking reaction, prevented the synthesis of organic soluble, high molecular weight polymers that possessed exclusively aryl or alkyl substituents. Nevertheless, poly(difluorophosphazene) has been shown to exhibit greater resistance to chain cleavage processes by organometallic reagents than poly(dichlorophosphazene).

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