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

Abstract

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.

Authors:
; ;  [1]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1461282
Report Number(s):
INL/JOU-17-41131
Journal ID: ISSN 1574-1443; PII: 516
DOE Contract Number:  
Contract No. DE-AC07-941D13223
Resource Type:
Journal Article
Journal Name:
Journal of Inorganic and Organometallic Polymers and Materials
Additional Journal Information:
Journal Volume: 27; Journal Issue: S1; Journal ID: ISSN 1574-1443
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS; Poly(dichlorophosphazene) P-trichloro-N-(dichlorophosphoryl)monophosphazene Melt phase synthesis

Citation Formats

Elayan, Azzam S., Allen, Christopher W., and Peterson, Eric S. Synthesis of Poly(dichlorophosphazene) by the Melt Phase Polymerization of P-Trichloro-N-(dichlorophosphoryl)monophosphazene. United States: N. p., 2017. Web. doi:10.1007/s10904-017-0516-x.
Elayan, Azzam S., Allen, Christopher W., & Peterson, Eric S. Synthesis of Poly(dichlorophosphazene) by the Melt Phase Polymerization of P-Trichloro-N-(dichlorophosphoryl)monophosphazene. United States. doi:10.1007/s10904-017-0516-x.
Elayan, Azzam S., Allen, Christopher W., and Peterson, Eric S. Thu . "Synthesis of Poly(dichlorophosphazene) by the Melt Phase Polymerization of P-Trichloro-N-(dichlorophosphoryl)monophosphazene". United States. doi:10.1007/s10904-017-0516-x. https://www.osti.gov/servlets/purl/1461282.
@article{osti_1461282,
title = {Synthesis of Poly(dichlorophosphazene) by the Melt Phase Polymerization of P-Trichloro-N-(dichlorophosphoryl)monophosphazene},
author = {Elayan, Azzam S. and Allen, Christopher W. and Peterson, Eric S.},
abstractNote = {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.},
doi = {10.1007/s10904-017-0516-x},
journal = {Journal of Inorganic and Organometallic Polymers and Materials},
issn = {1574-1443},
number = S1,
volume = 27,
place = {United States},
year = {2017},
month = {2}
}

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