Synthesis of Poly(dichlorophosphazene) by the Melt Phase Polymerization of P-Trichloro-N-(dichlorophosphoryl)monophosphazene

Elayan, Azzam S.; Allen, Christopher W.; Peterson, Eric S.

doi:10.1007/s10904-017-0516-x

Synthesis of Poly(dichlorophosphazene) by the Melt Phase Polymerization of P-Trichloro-N-(dichlorophosphoryl)monophosphazene

Journal Article · Thu Feb 16 04:00:00 EST 2017 · Journal of Inorganic and Organometallic Polymers and Materials

DOI:https://doi.org/10.1007/s10904-017-0516-x· OSTI ID:1461282

Elayan, Azzam S.; Allen, Christopher W.; Peterson, Eric S. ^[1]

Idaho National Lab. (INL), Idaho Falls, ID (United States)

A major barrier to commercialization of any of the many exciting applications of the poly(phosphazenes) has been the cost and ease of preparation of the most widely utilized starting polymer, poly(dichlorophosphazene) (Cl2PN)n (1). One attractive route is the thermal polycondensation reaction of P-trichloro-N-(dichlorophosphoryl)monophosphazene, Cl3P=N–P(O)Cl2 (2). We are reporting a modified bulk polymerization of 2 which represents a convenient route to laboratory scale amounts of (NPCl2)n with moderate molecular weights and polydispersity. GPC characterization data were obtained on the corresponding phenoxy derivatives, [(PhO)2PN]n. We also have developed a one pot synthesis of 1 from ammonium sulfate and phosphorus pentachloride which are the starting materials for the synthesis of 2 and examined the major variables, time and temperature, for this process. The resulting poly(phosphazene) exhibits more branching than the product of bulk polymerization of 1.

Research Organization:: Idaho National Laboratory, Idaho Falls, ID (United States)

Sponsoring Organization:: USDOE

OSTI ID:: 1461282

Report Number(s):: INL/JOU-17-41131; PII: 516

Journal Information:: Journal of Inorganic and Organometallic Polymers and Materials, Journal Name: Journal of Inorganic and Organometallic Polymers and Materials Journal Issue: S1 Vol. 27; ISSN 1574-1443

Publisher:: Springer

Country of Publication:: United States

Language:: English

References (12)

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99 GENERAL AND MISCELLANEOUS
Poly(dichlorophosphazene) P-trichloro-N-(dichlorophosphoryl)monophosphazene Melt phase synthesis

Synthesis of Poly(dichlorophosphazene) by the Melt Phase Polymerization of P-Trichloro-N-(dichlorophosphoryl)monophosphazene

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