Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Containing phosphorus

Table 1.12 Parent Structures of Phosphorus-Containing Compounds 1.36... Table 1.12 Parent Structures of Phosphorus-Containing Compounds 1.36...
Phosphorus-Containing Diols and Polyols. The commercial development of several phosphoms-contaiuing diols occurred in response to the need to flame retard rigid urethane foam insulation used in transportation and constmction. There are a large number of references to phosphoms polyols (111) but only a few of these have been used commercially. [Pg.479]

Phosphorus-Containing Polymers. A large number of addition and condensation polymers having phosphoms built in have been described, but few have been commercialized (131,132). No general statement seems warranted regarding the efficacy of built-in vs additive phosphoms (133). However, in textile fibers, there is greater assurance of permanency. [Pg.480]

U.S. EPA, Method SCI-Determination of Nitrogen- and Phosphorus Containing Pesticides in Ground Water hy GCj NPD, draft, Apr. 15, 1988 available from U.S. EPA Environmental Monitoring and Support Laboratory, Cincinnati, Ohio, 1988. [Pg.61]

Phosphorus-Containing Cellulose Esters. Cellulose phosphate [9015-14-9] esters (CP) are of interest because of their inherent dame resistance and ion-exchange capabiUty. [Pg.265]

AN X-RAY PHOTOELECTRON SPECTROSCOPIC EXAMINATION OF PHOSPHORUS CONTAINING MATERIALS OVERVIEW ON METHODS ADVANCES AND ABILITIES... [Pg.450]

Whilst rigid closed-cell polyurethanes are excellent thermal insulators they do suffer from a limited and often unsatisfactory level of fire resistance, even in the presence of phosphorus-containing and halogen-containing fire retardants. Considerable promise is now being shown by the polyisocyanurates, which are also based on isocyanate chemistry. [Pg.805]

Of the phosphorus-containing polymers the polyphosphates have been known for many years. Aluminium phosphate had been used in the manufacture of heat-resistant silica-fibre-reinforced laminates. [Pg.844]

Kyba and his coworkerswere also able to prepare a number of smaller, phosphorus-containing rings and several maeroeyeles containing both sulfur and phosphorus atoms. [Pg.274]

Kyba and his coworkers have made numerous phosphorus-containing macrocycles and many of these are recorded in the tables at the end of this chapter. In addition, this group has prepared and reported quite a number of arsinocycles. The observations concerning phosphorus macrocycles apply in general to the arsinocycles as well, but the inversion barrier is even higher for the latter than the former. ... [Pg.275]

Phosphatidic acids not only are intennediates in the biosynthesis of triacylglycerols but also are biosynthetic precursors of other members of a group of compounds called phosphoglycerides or glycerol phosphatides. Phosphorus-containing derivatives of lipids are known as phospholipids, and phosphoglycerides are one type of phospholipid. [Pg.1078]

The EPR spectra of the related 1,2,4,6,3,5-thiatriazadiphosphinyl radicals (3.20) reveal a distinctly different electronic structure.The observed spectrum consists of a quintet of triplets consistent with coupling of the unpaired electron with two equivalent nitrogen atoms and two equivalent phosphorus atoms [Fig. 3.4(a)]. This interpretation was confirmed by the observation that the quintet collapses to a 1 2 1 triplet when the nitrogen atoms in the ring are 99% N-enriched [Fig 3.4(b)]. Thus the spin delocalization does not extend to the unique nitrogen atom in the phosphorus-containing system 3.20. [Pg.39]

Coordination compounds with three-, four-, and six-member phosphorus-containing heterocycles 98PAC819. [Pg.271]

Chlorination at the position of the side chain is probably the result of phosphorylation of the intermediate vinyl chlorides followed by degradation of the phosphorus-containing products (72ZOB802). [Pg.15]

A number of phosphorus containing polyimides were synthesized by Varma and coworkers and their properties were studied [137-141]. Polyimides have also been synthesized by the reaction of benzophenonetetra-carboxylic dianhydride (BTDA) and bis(3-aminophen-yl)methylphosphine oxide [142]. Copolyimides were... [Pg.46]

Phosphorus containing poly(maleimide-amines) were synthesized from N,N -bisdichloromaleimido-3,3 -diphenyl alkylphosphine oxides and aromatic diamines or piperazine [144]. The polymers prepared from piperazine are soluble in DMF, DM AC, DMSO, etc., but have poor thermal stability and flame retardancy. [Pg.46]

It has been observed that all the phenoxaphosphine ring-containing polymers have excellent thermal stability and show better heat resistance than open-chain phosphorus containing polymers. The phenoxaphosphine polymers containing aromatic rings in the backbone show little degradation below 400°C in air. [Pg.47]

Phenothiophosphine ring-containing polyamides and polyesters were also prepared by the polycondensation of 2,8-bischloroformyl-lO-phenylphenothiophos-phine 5,5, 10-trioxide with aromatic diamines such as 4,4 -diaminodiphenyl ether and 4,4 -diaminodiphenyl-methane, and bisphenols such as 4,4 -dihydroxybiphe-nyl and 4,4 -dihydroxydiphenylmethane, respectively [159]. These polymers are soluble in polar aprotic solvents and also exhibit good heat and fire resistance. Phosphorus containing high performance polymers are shown in Table 6. [Pg.47]

Table 6 Phosphorus Containing High Performance Polymers... Table 6 Phosphorus Containing High Performance Polymers...
The Preparation of Halodeoxy Sugars Using Phosphorus-Containing Reagents... [Pg.180]

Sulfur is made up of S8 molecules each molecule has a cyclic (crown) structure. Phosphorus contains P< molecules each molecule has a tetrahedral structure. On the basis of molecular size and shape, which would you expect to have the higher melting point ... [Pg.318]

These phosphorus-containing PAN derivatives are unstable under hydrolytic conditions, and the phosphoryl groups are easily split off under the action of boiling water. If, however, the modified PAN is treated with dimethyl phosphite solution in toluene in the presence of dimethylamine, a modified PAN, stable towards hydrolysis, is obtained. Its composition seems to be the following ... [Pg.116]


See other pages where Containing phosphorus is mentioned: [Pg.208]    [Pg.1078]    [Pg.197]    [Pg.497]    [Pg.842]    [Pg.64]    [Pg.242]    [Pg.249]    [Pg.430]    [Pg.45]    [Pg.46]    [Pg.46]    [Pg.46]    [Pg.89]    [Pg.1179]    [Pg.788]    [Pg.798]    [Pg.187]    [Pg.265]    [Pg.266]    [Pg.720]    [Pg.865]    [Pg.201]    [Pg.117]    [Pg.195]   


SEARCH



Additives phosphorus containing

Adsorption of Phosphorus-Containing Compounds on Alumina

Alkylation by means of phosphorus-containing esters

Anhydrides, containing phosphorus

Antibiotics, phosphorus-containing

Antistatic agents containing phosphorus

Arsenic, Halogen, Phosphorus, Sulfur, Selenium and Nitrogen Containing Compounds

Bidentate Ligands Containing a Heteroatom-Phosphorus Bond

Biomedical Applications of Phosphorus-Containing Polymers

Bisimide resins containing phosphorus

Boron-, Silicon-, and Phosphorus-Containing Polymers

Breast milk containing phosphorus

Cage structures phosphorus-containing

Calixarenes phosphorus-containing

Carbanions phosphorus-containing

Carbohydrates, phosphorus-containing

Chalcogen-Nitrogen Rings Containing Phosphorus(III) or Other p-Block Elements

Cobalt phosphorus containing

Containing metal-phosphorus bonds

Containing phosphorus oxygen index

Containing phosphorus preparation

Containing phosphorus synthesis

Containing phosphorus thermal stability

Coordination Chemistry of Ligands Containing Phosphorus-Chalcogen Bonds

Cyclic phosphorus-containing compound

Dendrimers phosphorus-containing

Differences Between Thermal and Thermo-Oxidative Degradation of Phosphorus Containing Polysulfones

Enzyme complexes phosphorus-containing compounds

Epoxy resin Phosphorus containing

Ethylene oxide use in synthesizing esters containing phosphorus

Fireworks containing phosphorus

Flame Retardancy of Phosphorus-Containing Polymers

Flame retardant compounds containing phosphorus

Fluorophosphines Containing Phosphorus-Nitrogen Bonds

Fluorophosphines Containing Phosphorus-Oxygen Bonds (Fluorophosphites)

Four-membered Rings containing Sulphur, Nitrogen, and Phosphorus

Free radicals, phosphorus-containing

Glass Transition Temperature and Thermal Stability of Phosphorus-Containing Siliconized Epoxy Resin

Group phosphorus-containing compounds

Heterocycles containing Phosphorus (with or without Oxygen)

Heterocycles phosphorus-containing

Heterocyclics, containing phosphorus

Heterocyclothiazenes containing phosphorus(III) or other p-block elements

Ion exchange materials phosphorus-containing ligands

Iron phosphorus containing

Ligands not Containing Phosphorus

Ligands phosphorus-containing

Macrobicyclic phosphorus-containing

Macrocyclic ligands phosphorus-containing

Macrocyclic phosphorus-containing

Metal carbonyl derivatives, containing phosphorus donor ligands

Metals Anticorrosion Phosphorus-Containing Polymer Coatings

Microdetermination of Oxygen in Phosphorus-containing Compounds

Multi-Faceted Properties of Phosphorus-Containing Siliconized Epoxy Resins

Nitrones sulfur- and phosphorus-containing

Nomenclature of esters containing phosphorus

Notes on the agreed system for compounds containing only one phosphorus atom

Organogermanium Trihalides Containing Phosphorus

Osmium phosphorus containing

Other Inorganic Polymers that Contain Phosphorus, Boron and Sulfur

Other Phosphorus Containing Superbases Verkades Proazaphosphatranes

Other Phosphorus-Containing Diketo-Ring Systems

Other Phosphorus-Containing Pigments

Other Phosphorus-Containing Polymers

Other phosphorus containing compounds

Oxygen-containing phosphorus

Phosphation and Other Reactions Leading to Phosphorus-Containing Starches

Phosphorus Compounds Containing Sterically Demanding Groups

Phosphorus Containing Siliconized Epoxy Resins

Phosphorus and Arsenic-containing Macrocycles

Phosphorus and Silicon Containing Flame Retardants

Phosphorus compounds containing iron, inorganic

Phosphorus compounds containing iron, organic

Phosphorus containing macrocycles

Phosphorus containing polyimides

Phosphorus containing polymers

Phosphorus containing polymers structures

Phosphorus- and arsenic-containing macrocyclic compounds

Phosphorus-Containing Allyl Monomers

Phosphorus-Containing Dienophiles

Phosphorus-Containing Fire Retardants

Phosphorus-Containing Hydrotreating Catalysts

Phosphorus-Containing Nucleophiles

Phosphorus-Containing Organic Compounds

Phosphorus-Containing Polysulfones

Phosphorus-boron-nitrogen-containing

Phosphorus-boron-nitrogen-containing oligomer

Phosphorus-containing Acids

Phosphorus-containing Ring Systems

Phosphorus-containing Rings

Phosphorus-containing acids and

Phosphorus-containing acids and derivatives

Phosphorus-containing acids, herbicide

Phosphorus-containing aldehydes

Phosphorus-containing aromatic

Phosphorus-containing aromatic poly

Phosphorus-containing boron polymers

Phosphorus-containing carbenes

Phosphorus-containing chemicals

Phosphorus-containing compounds

Phosphorus-containing compounds complexes with

Phosphorus-containing compounds, oxidations

Phosphorus-containing cyclic ester

Phosphorus-containing derivatives

Phosphorus-containing enzymes

Phosphorus-containing enzymes dependence

Phosphorus-containing fertilizers

Phosphorus-containing flame

Phosphorus-containing flame compound

Phosphorus-containing flame retardants

Phosphorus-containing groups

Phosphorus-containing groups carbanion stabilization

Phosphorus-containing groups ylides

Phosphorus-containing heteroarenes

Phosphorus-containing ketones

Phosphorus-containing leaving groups

Phosphorus-containing macrocycles macrocyclic effect

Phosphorus-containing macrocycles stereochemistry

Phosphorus-containing molecules

Phosphorus-containing molecules, force

Phosphorus-containing organic species

Phosphorus-containing particles

Phosphorus-containing pesticides

Phosphorus-containing phosphoryl

Phosphorus-containing photoinitiators

Phosphorus-containing plastics additives

Phosphorus-containing polymers flame-retardant properties

Phosphorus-containing polymers properties

Phosphorus-containing polymers thermal degradation

Phosphorus-containing polymers, research

Phosphorus-containing polymers. thermal

Phosphorus-containing polyurethane-semicarbazides

Phosphorus-containing reagents

Phosphorus-containing reagents configuration

Phosphorus-containing reagents determination

Phosphorus-containing resins

Phosphorus-containing solvents

Phosphorus-containing stabilizers

Poly phosphorus-containing

Polyamides phosphorus containing

Polymer [continued phosphorus-containing

Polymerization of Phosphorus-Containing (meth)acrylamide Monomers

Polymers Containing Phosphorus and Nitrogen in the Backbone

Polymers Containing Phosphorus in the Backbone

Polymers containing phosphorus ligands

Polystyrene phosphorus-containing

Polyurethanes phosphorus-containing

Polyvinyl phosphorus-containing

Reactivity oxygen-containing phosphorus

Rhodium phosphorus containing

Rubbers phosphorus-containing

Ruthenium phosphorus containing

Selenium-containing phosphorus

Selenium-containing phosphorus compounds

Specialized phosphorus containing polymers

Structural Models of Phosphorus-Containing Hydrotreating Catalysts

Subject phosphorus-containing

Sugars phosphorus-containing reagents

Sulfur-containing phosphorus halides

Sulfur-nitrogen-phosphorus-containing

Sulfur-nitrogen-phosphorus-containing polymers

Synthesis of macrobicyclic phosphorus-containing d-metal tris-diiminates

Tetraorganogermanes Containing Nitrogen and Phosphorus

Tetraorganotin Compounds Containing Nitrogen and Phosphorus

Titanium, allylheterosubstituted phosphorus-containing

Transition-metal derivatives phosphorus-containing

Triorganotin Alkoxides Derived from Alcohols Containing Nitrogen and Phosphorus

Unsymmetrical Hybrid Phosphorus Containing Ligands for Rh Catalyzed Asymmetric Hydrogenation

© 2024 chempedia.info