2950-45-0Relevant academic research and scientific papers
ALLYL-PHENOXY-CYCLOPHOSPHAZENE COMPOUND, AND PRODUCTION METHOD THEREFOR
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Paragraph 0217, (2018/06/15)
An object of the present invention is to provide a mixture of cyclophosphazenes suitably substituted with phenoxy having a polymerizable functional group, such as allyl, on the phenyl ring and a production method for the mixture. The invention relates to a mixture of cyclophosphazene compounds that each contain a plurality of constituent units linked to each other, each constituent unit being represented by formula (I): wherein R1 and R2 are identical or different and represent C1-4 alkyl or the like, the mixture containing cyclophosphazene compounds in which 3, 4, and 5 constituent units represented by formula (I) are linked, wherein the cyclophosphazene compound containing 3 linked constituent units is cyclophosphazene compound (I-A) with a specific structure, compound (I-A) includes cyclophosphazene compounds (I-A2) and (I-A3) having a specific structure, and compounds (I-A2) and (I-A3) are present in an amount of 80 wt % or more in total in cyclophosphazene compound (I-A).
Octa-(1,2-dyhydroxyl-2-methoxyl)tetra-polyphosphazene
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Paragraph 0022; 0023, (2017/01/02)
The invention discloses octa-(1,2-dyhydroxyl-2-methoxyl)tetra-polyphosphazene. The formula of the octa-(1,2-dyhydroxyl-2-methoxyl)tetra-polyphosphazene is as shown in the specification. The octa-(1,2-dyhydroxyl-2-methoxyl)tetra-polyphosphazene can be used for preparing star polymer.
Structure and conformation of the medium-sized chlorophosphazene rings
Bowers, David J.,Wright, Brian D.,Scionti, Vincenzo,Schultz, Anthony,Panzner, Matthew J.,Twum, Eric B.,Li, Lin-Lin,Katzenmeyer, Bryan C.,Thome, Benjamin S.,Rinaldi, Peter L.,Wesdemiotis, Chrys,Youngs, Wiley J.,Tessier, Claire A.
, p. 8874 - 8886 (2014/12/09)
Medium-sized cyclic oligomeric phosphazenes [PCl2N]m (where m = 5-9) that were prepared from the reaction of PCl5 and NH4Cl in refluxing chlorobenzene have been isolated by a combination of sublimation/extraction and column chromatography from the predominant products [PCl2N]3 and [PCl2N]4. The medium-sized rings [PCl2N]m have been characterized by electrospray ionization-mass spectroscopy (ESI-MS), their 31P chemical shifts have been reassigned, and their T1 relaxation times have been obtained. Crystallographic data has been recollected for [PCl 2N]5, and the crystal structures of [PCl 2N]6, and [PCl2N]8 are reported. Halogen-bonding interactions were observed in all the crystal structures of cyclic [PCl2N]m (m = 3-5, 6, 8). The crystal structures of [P(OPh)2N]7 and [P(OPh)2N]8, which are derivatives of the respective [PCl2N]m, are also reported. Comparisons of the intermolecular forces and torsion angles of [PCl2N]8 and [P(OPh)2N]8 with those of three other octameric rings are described. The comparisons show that chlorophosphazenes should not be considered prototypical, in terms of solid-state structure, because of the strong influence of halogen bonding.
X-ray crystal structures and DFT calculations of differently charged aminocyclophosphazenes
Vorontsov, Ivan I.,Tur, Dzidra R.,Papkov, Vladimir S.,Antipin, Mikhail Yu.
, p. 1 - 11 (2009/10/17)
Molecular structures of hexakis(amino)cyclotriphosphazene, N3P3(NH2)6, neutral and cationic forms of hexakis(ethylamino)cyclotriphosphazene, N3P3(NHC2H5)6,
Probing the mechanism of the PCl5-initiated living cationic polymerization of the phosphoranimine Cl3P=NSiMe3 using model compound chemistry
Blackstone, Vivienne,Lough, Alan J.,Murray, Martin,Manners, Ian
, p. 3658 - 3667 (2009/09/24)
New insight into the mechanism of the ambient temperature PCl5-initiatedliving cationic chain growth polycondensation of the N-silylphosphorani mine Cl3P=NSiMe3 (1) to give poly(dichlorophosphazene), [N=PCl2]n,has been provided by studies of model compound chemistry. Investigations of the reactivity of Cl- salts ofthe proposed cationic intermediates [Cl3P=N=PCl3] + ([2] +) and [Cl3PdN-PCl2dNdPCl3] + ([6]+) toward Ph3P=NSiMe3 (3a) provided evidence that under the usual polymerization conditions that involve a high monomer to initiator ratio, propagation occurs at both chain ends. However, analogous studies of near stoichiometric processes suggested that propagation is faster at one chain end, particularly when the chains are short. In addition, experiments involving [Ph3P=N=PPh3][PCl6] ([9][PCl6]) and the N-silylphosphoranimines R3P-NSiMe 3 3a (R = Ph) and 3b (R = p-CF3C6H 4),showed that the [PCl6]- anion, which is formed in the early stages of the polymerization and has hitherto been assumed to be an innocent spectator counteranion, is actually reactive under the r eaction conditions and can initiate oligomerization and polymerization. Finally, the absence of reactions between phosphoranimines 3b or 1 with the Cl- salts of the cations [Ph3P=N-PCl2=N=PPh3]+ ([10a]+), [Ph3P=N-(PCl2=N) 2= PPh3]+ ([5]+), and [Ph3P=N-(PCl 2=N) 3-PPh3]+ ([8]+) with P-Cl bonds located internally but not at the chain ends have shown that chain branching reactions are unlikely to be significant during the polymerization. These results identify key factors that complicate the living PCl5-initiated chain growth polycondensation of 1 and potentially lead to a loss of control over molecular weight and broaden the molecular weight distributions, but also indicate that the polymer formed is essentially linear rather than branched.
Process For Producing Phosphonitrilic Acid Ester
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Page/Page column 14, (2008/06/13)
A process for producing a cyclic and/or linear phosphonitrilic acid ester from a cyclic and/or linear phosphonitrile dichloride is provided, wherein the reaction time is shorter and the content of monochloro phosphazenes is very small. When phosphonitrile dichloride is reacted with a metal arylolate and/or a metal alcoholate in the presence of a reaction solvent, a metal arylolate and/or a metal alcoholate composed of at least two different metals having different ionization energies is used and also a specific compound is used as a catalyst.
Synthesis and characterization of some transition metal complexes of trimeric and tetrameric aminocyclophosphazenes
Shrimal,Srivastava,Pandey,Agrawal
, p. 528 - 533 (2007/10/03)
Reactions of aminocyclotri-and aminocyclotetra-phosphazenes, viz., N3P3L6 and N4P4L8 (L = -HN(sec- C4H9) -NHC6H11, - HNC8H17, -NC5H10 and -NC4H8O) with hydrated Cu(II), Co(II), Ni(II) and Fe(III) chlorides have been studied. CuCl2.2H2O give only [(N3P3L6H or N4P4L8H)CuCl3] whereas with CoCl2.6H2O, a mixture of two products, namely, [(N3P3L6H or N4P4L8H)CoCl3] and [(N3P3L6H or N4P4L8H)]2[CoCl4] are recovered. FeCl3.6H2O and NiCl2.6H2O give only ionic products of the type [(N3P3L6)H)][FeCl4] and [(N3P3L6H)]2[NiCl4]. A few reactions of N2P3L6 (L=-HN(sec-C4H9). -HNC6H13 and -HNC8H17) with Mo(CO)6 have also been carried out. In these reactions [(N3P3L6)Mo(CO)3] derivatives are obtained. The complexes have been characterized by analytical data, conductivity, magnetic and IR measurements.
A new route to the phosphazene polymerization precursors, Cl3P=NSiMe3 and (NPCl2)3
Allcock, Harry R.,Crane, Chester A.,Morrissey, Christopher T.,Olshavsky, Michael A.
, p. 280 - 283 (2008/10/08)
An improved synthesis of the phosphazene polymerization precursors, hexachlorocyclotriphosphazene, (NPCl2)3 (1), and Cl3P=NSiMe3 (2) is reported. The addition of PCl5 to N(SiMe3)3 in methylene chloride at 40 °C produced a mixture of phosphazenes which contained 76% of 1. However, the addition of N(SiMe3)3 to PCl5 in methylene chloride at 0 °C, followed by the addition of hexane, provided 2 in 40% yield. The mechanism of the reaction is discussed.
Reactions of Alkali-metal Azides with some Organophosphorus(V) Compounds
Dillon, Keith B.,Platt, Andrew W. G.,Waddington, Thomas C.
, p. 2292 - 2295 (2007/10/02)
The reactions of Li or Na with some organophosphorus(V) compounds containing chloro-groups, including PCl5(py) (py = pyridine) and catechyl derivates of PCl5, have been investigated by I31IP n.m.r. spectroscopy.Several new azido-species have been
