Synthesis of New Hyperbranched Phosphorus-Containing Polyesters Starting from Boltorn H20

Sergey A. Loza; Victor V. Dotsenko; Victor I. Zabolotskiy

doi:10.3390/ecsoc-22-05862

Synthesis of New Hyperbranched Phosphorus-Containing Polyesters Starting from Boltorn H20

Proceedings ◽

10.3390/ecsoc-22-05862 ◽

2018 ◽

Vol 9 (1) ◽

pp. 7

Author(s):

Sergey A. Loza ◽

Victor V. Dotsenko ◽

Victor I. Zabolotskiy

Keyword(s):

Hyperbranched Polyester ◽

Phosphorus Containing ◽

Boiling Toluene

Upon gentle treatment with SOCl2, hyperbranched polyester Boltorn H20 afforded a mixture of terminal polychlorides. The latter react with an excess of triphenylphosphine in boiling toluene or with pyridine to give a mixture of polyesters with terminal triphenylphosphonium and pyridinium fragments, respectively.

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The Metabolism of Sulfur- and Phosphorus-Containing Compounds / Der Stoffwechsel der Schwefel- und Phosphorhaltigen Verbindungen

10.1007/978-3-662-21766-5 ◽

1958 ◽

Keyword(s):

Phosphorus Containing

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MACHINERY OPERATIONAL PROPERTY CONTROL DURING DIAMOND-ABRASIVE FINISHING USING ACTIVE SOTS

Bulletin of Bryansk state technical university ◽

10.30987/1999-8775-2020-9-13-17 ◽

2020 ◽

Vol 2020 (9) ◽

pp. 13-17

Author(s):

Yuriy Ryzhov ◽

Svetlana Abramova

Keyword(s):

Corrosion Inhibitors ◽

Tribological Behavior ◽

Surface Layers ◽

Physical Chemical ◽

Abrasive Finishing ◽

Alloying Additives ◽

Phosphorus Containing ◽

Micro Emulsion ◽

Property Control ◽

Diamond Abrasive

There is carried out a number of experiments with the purpose of analyzing SOTS impact upon both finishing productivity, and physical-chemical state and tribological behavior of surfaces machined, and also a possibility for creation according to the results of the investigations carried out a relatively universal micro-emulsion SOTS based on existing in the Ukraine the line of oils, PAV, corrosion inhibitors, alloying additives etc. As SOTS samples there were used both well-known compouds, for example, Camix, Nope Right (USA), and carbamide having in its structure boron, boron-phosphorus-containing additive, water-solvable phosphate, tributyl phosphate (oil-solvable), concentrate SOTS tribol, having in its structure compounds of boron, nitrogen and phosphorous; ethylic ether of fatty acids; methyl ether of colza oil; Sarkozyl-O having in its structure easily-decomposable chlorine compounds. From the results obtained it is possible to draw a conclusion that during finishing in the environment of water-compatible SOTS an important role in the formation of the properties of the surface worked is played by hydrocarbon components and additives which contribute to the formation of the thinnest surface layers modified with carbon and oxygen.

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Validation of a Generation 4 Phosphorus-Containing Polycationic Dendrimer for Gene Delivery Against HIV-1

Current Medicinal Chemistry ◽

10.2174/0929867311209025044 ◽

2012 ◽

Vol 19 (29) ◽

pp. 5044-5051 ◽

Cited By ~ 34

Author(s):

V. Briz ◽

M.J. Serramia ◽

R. Madrid ◽

A. Hameau ◽

Anne-Marie Caminade ◽

...

Keyword(s):

Gene Delivery ◽

Phosphorus Containing ◽

Hiv 1

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Fluorinated tricyclic neuroleptics with prolonged action: 8-Methoxy, 8-ethoxy, 8-ethylthio and 8-hydroxy derivatives of 3-fluoro-10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]thiepin

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19821382 ◽

1982 ◽

Vol 47 (5) ◽

pp. 1382-1391 ◽

Cited By ~ 2

Author(s):

Jiří Jílek ◽

Josef Pomykáček ◽

Jiřina Metyšová ◽

Miroslav Protiva

Keyword(s):

Acetic Acid ◽

Polyphosphoric Acid ◽

Prolonged Action ◽

Substitution Reactions ◽

Methoxy Derivative ◽

Chloro Derivatives ◽

Boron Tribromide ◽

Derivatives Of ◽

Central Depressant ◽

Boiling Toluene

Acids IIa-c were prepared by reactions of (4-fluoro-2-iodophenyl)acetic acid with 4-methoxythiophenol, 4-ethoxythiophenol and 4-(ethylthio)thiophenol and cyclized with polyphosphoric acid in boiling toluene to dibenzo[b,f]thiepin-10(11H)-ones IIIa-c. Reduction with sodium borohydride afforded the alcohols IVa-c which were treated with hydrogen chloride and gave the chloro derivatives Va-c. Substitution reactions with 1-methylpiperazine resulted in the title compounds Ia-c out of which the methoxy derivative Ia was transformed by demethylation with boron tribromide to the phenol Id. Compounds Ia-d are very potent neuroleptics exhibiting a clear prolongation of the central depressant and some prolongation of the cataleptic activity.

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Ten-Vertex Polyhedral Monocarbaborane Chemistry. The Novel High-Yield Formation of the Ten-Vertex closo Compound [6-(PMe2Ph)-closo-1-CB9H9] from the Thermolysis of [8,8-(PMe2Ph)2-nido-8,7-PtCB9H11]

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19932924 ◽

1993 ◽

Vol 58 (12) ◽

pp. 2924-2935 ◽

Cited By ~ 8

Author(s):

Jane H. Jones ◽

Bohumil Štíbr ◽

John D. Kennedy ◽

Mark Thornton-Pett

Keyword(s):

Nmr Spectroscopy ◽

Diffraction Analysis ◽

High Yield ◽

Monoclinic Space Group ◽

The Novel ◽

X Ray Diffraction ◽

Metal Centre ◽

X Ray ◽

Yield Formation ◽

Boiling Toluene

Thermolysis of [8,8-(PMe2Ph)2-nido-8,7-PtCB9H11] in boiling toluene solution results in an elimination of the platinum centre and cluster closure to give the ten-vertex closo species [6-(PMe2Ph)-closo-1-CB9H9] in 85% yield as a colourles air stable solid. The product is characterized by NMR spectroscopy and single-crystal X-ray diffraction analysis. Crystals (from hexane-dichloromethane) are monoclinic, space group P21/c, with a = 903.20(9), b = 1 481.86(11), c = 2 320.0(2) pm, β = 97.860(7)° and Z = 8, and the structure has been refined to R(Rw) = 0.045(0.051) for 3 281 observed reflections with Fo > 2.0σ(Fo). The clean high-yield elimination of a metal centre from a polyhedral metallaborane or metallaheteroborane species is very rare.

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The Preparation, Thermal Properties, and Fire Property of a Phosphorus-Containing Flame-Retardant Styrene Copolymer

Materials ◽

10.3390/ma13010127 ◽

2019 ◽

Vol 13 (1) ◽

pp. 127 ◽

Cited By ~ 2

Author(s):

Yu Sun ◽

Yazhen Wang ◽

Li Liu ◽

Tianyuan Xiao

Keyword(s):

Thermal Properties ◽

Thermogravimetric Analysis ◽

Flame Retardant ◽

Oxygen Index ◽

Limiting Oxygen Index ◽

Chemical Structures ◽

1H Nuclear Magnetic Resonance ◽

Phosphorus Containing ◽

Ft Ir ◽

Ft Ir Spectroscopy

A 9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide (DOPO) acrylate, (6-oxidodibenzo [c,e][1,2] oxaphosphinin-6-yl) methyl acrylate (DOPOAA), has been prepared. Copolymers of styrene (St) and DOPOAA were prepared by emulsion polymerization. The chemical structures of copolymers containing levels of DOPOAA were verified using Fourier transform infrared (FT-IR) spectroscopy and 1H nuclear magnetic resonance (1H-NMR) spectroscopy. The thermal properties and flame-retardant behaviors of DOPO-containing monomers and copolymers were observed using thermogravimetric analysis and micro calorimetry tests. From thermogravimetric analysis (TGA), it was found out that the T5% for decomposition of the copolymer was lower than that of polystyrene (PS), but the residue at 700 °C was higher than that of PS. The results from micro calorimetry (MCC) tests indicated that the rate for the heat release of the copolymer combustion was lower than that for PS. The limiting oxygen index (LOI) for combustion of the copolymer rose with increasing levels of DOPOAA. These data indicate that copolymerization of the phosphorus-containing flame-retardant monomer, DOPOAA, into a PS segment can effectively improve the thermal stability and flame retardancy of the copolymer.

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