brominated anionic content

WO2005118245A1 - Pelletized brominated anionic styrenic ...

Despite the frangibility of additive-free granules of brominated anionic styrenic polymer, it has been found possible by use of special mechanical processing to provide pellets of unadulterated brominated anionic styrenic polymer having a bromine content of at least about 50 wt% and in which at least about 70 wt% (preferably at least about 75 wt%) of the pellets are retained on a standard US ...

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US7585443B2 - Pelletized brominated anionic styrenic ...

Despite the frangibility of additive-free granules of brominated anionic styrenic polymer, it has been found possible by use of special mechanical processing to provide pellets of unadulterated brominated anionic styrenic polymer having a bromine content of at least about 50 wt % and in which at least about 70 wt % (preferably at least about 75 wt %) of the pellets are retained on a standard ...

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US20100047577A1 - Converting Brominated Anionic Styrenic ...

Aug 09, 2017  Granules/pastilles of unadulterated brominated anionic styrenic polymer are prepared and provided. They are made by forming a downward plug flow from an orifice in a manifold or nozzle in proximity to a cooled traveling planar member. Such member is impervious to cooling liquid. There is a gap between the lower end of the orifice and the planar member.

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US8067088B2 - Pelletized brominated anionic styrenic ...

Despite the frangibility of additive-free granules of brominated anionic styrenic polymer, pellets of unadulterated brominated anionic styrenic polymer are provided having 50 wt % or more bromine content, in which 70 wt % or more of the pellets are retained on a US No. 40 sieve and no more than 30 wt % are retained on a US No. 5 sieve.

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WO2008066970A1 - Converting brominated anionic styrenic ...

Granules/pastilles of unadulterated brominated anionic styrenic polymer are prepared and provided. They are made by forming a downward plug flow from an orifice in a manifold or nozzle in proximity to a cooled traveling planar member. Such member is impervious to cooling liquid. There is a gap between the lower end of the orifice and the planar member.

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Pelletized Brominated Content

In preferred embodiments such pelletized anionic styrenic polymer is brominated anionic polystyrene having a bromine content of at least about 67 wt%, e.g., in the range of about 67 to about 71 wt%. Also preferred are pelletized brominated anionic styrenic polymers in which the melt flow index (ASTM D 1238-99) at 220°C, 2.16 kg is at least 4 g ...

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Viscoelastic Properties of Anionic Brominated Surfactants

(Figure 2). The brominated oleic acid was saponified with potassium chloride to give potassium 9-bromo stearate. This is essentially a brominated anionic surfactant. Anionic surfactants dissolve in aqueous media to form a surfactant solution. At concentrations above the critical micelle concentration (cMc) the surfactant molecules

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Pelletized Brominated Content

In preferred embodiments such pelletized anionic styrenic polymer is brominated anionic polystyrene having a bromine content of at least about 67 wt%, e.g., in the range of about 67 to about 71 wt%. Also preferred are pelletized brominated anionic styrenic polymers in which the melt flow index (ASTM D 1238-99) at 220°C, 2.16 kg is at least 4 g ...

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(PDF) Viscoelastic Properties of Anionic Brominated ...

The brominated oleic acid was saponified with The starting material for the synthesis of brominated fatty potassium chloride to give potassium 9-bromo stearate. acids were oleic acid. The oleic acid was analysed by using This is essentially a brominated anionic surfactant.

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PELLETIZED BROMINATED ANIONIC STYRENIC POLYMERS AND

In preferred embodiments such pelletized anionic styrenic polymer is brominated anionic polystyrene having a bromine content of at least about 67 wt%, e.g., in the range of about 67 to about 71 wt%. Also preferred are pelletized brominated anionic styrenic polymers in which the melt flow index (ASTM D 1238-99) at 220 DEG C, 2.16 kg is at least ...

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Anion binding, electrochemistry and solvatochromism of β ...

Jump to main content . Jump to site search . Publishing. ... reported here are possible candidates for use in the design of optoelectronic noses for detection of anions and anionic analyte ... Computational and electrochemical studies revealed widening HOMO–LUMO band gaps for the brominated compounds over the non-brominated analogues ...

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Brominated surfactants as emulsifiers and weighting agents ...

Nov 01, 1983  A new concept was developed as a result of this study: preparation of surfactants which combine weighting and emulsifying functions in one compound. An example is the bromination of unsaturated commercial surfactants to increase their specific gravity. Both non-ionic and anionic surfactants were brominated.

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Bromine - Wikipedia

Bromine is a chemical element with the symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured vapour. Its properties are intermediate between those of chlorine and iodine.Isolated independently by two chemists, Carl Jacob Löwig (in 1825) and Antoine Jérôme Balard (in 1826 ...

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Halogen Bonding in the Complexes of Brominated ...

The wide-range variation of the strength of halogen bonds (XB) not only facilitates a variety of applications of this interaction, but it also allows examining the relation (and interconversion) between supramolecular and covalent bonding. Herein, the BrCl halogen bonding in a series of complexes of bromosubstituted electrophiles (R-Br) with chloride anions were examined via X-ray ...

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William J. Layman, Jr. Inventions, Patents and Patent ...

Apr 04, 2017  Abstract: This invention relates flame retardant compositions containing low molecular weight brominated anionic, chain transfer, vinyl aromatic polymers, hereinafter “ACTVAP”. The compositions can accommodate high bromine content while still exhibiting a low thermally labile bromine content. The compositions have glass transition temperatures, Tg, that are predictive of acceptable

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Calcium-induced lipid phase separations and interactions ...

A novel method that uses a carbazole-labeled fluorescent phosphatidylcholine, which partitions preferentially into liquid-crystalline lipid domains, to monitor the kinetics and the extents of thermotropic and ionotropic lateral phase separations in vesicles combining brominated and nonbrominated phosphatidylcholines (PCs), phosphatidic acids (PAs), and phosphatidylserines (PSs) is described.

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Brominated vegetable oil Podcast Chemistry World

Brominated vegetable oil, called BVO for short, is made by adding bromine across the double bonds of certain fatty acids in vegetable oil, usually soybean oil. Like plain vegetable oil, BVO does a good job of dissolving water-insoluble food flavour, fragrance and colouring agents, serving as a carrier for these agents in soft drinks, which are ...

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Brominated Isobutylene-Isoprene Rubber (BIIR) Market ...

Jul 12, 2021  Section (5 6 7): 500 USD----Product Type Segmentation Bromine Content 1.9% Bromine Content 2.0% Bromine Content 2.1%Industry Segmentation Tires

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Art Mack - Research and Development Manager TETRA ...

Art Mack Conroe, Texas, United States Research and Development Manager TETRA Innovation Group at TETRA Technologies Inventor of new, innovative, high-density, solids-free, zinc-free, and ...

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Interactions of Anionic Phospholipids and ...

Fluorescence quenching methods have been used to study interactions of anionic phospholipids with the potassium channel KcsA from Streptomyces lividans. Quenching of the Trp fluorescence of KcsA reconstituted into mixtures of dioleoylphosphatidylcholine (DOPC) and an anionic phospholipid with dibromostearoyl chains is more marked at low mole fractions of the brominated anionic phospholipid ...

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Mercury chemistry on brominated activated carbon

(O) anionic species on the carbon surface. Hutson et al. [6] charac-terized chlorinated AC and brominated AC using X-ray absorption spectroscopy (XAS) and X-ray photoelectron spectroscopy (XPS) after exposing the carbons to Hg0-laden flue gas. Due to the low coverage of Hg on the carbon, they could not determine the speci-ation of Hg.

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Elemental mercury reaction chemistry on brominated ...

Nov 01, 2017  These studies indicated that the acidic sites, anionic species and Br atoms on the surface of the sorbents play an important role on Hg 0 capture by brominated activated carbons. In addition to brominated sorbents, sulfur-impregnated carbon-based sorbents have been reported to be highly efficient at removing mercury.

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Bromine - Wikipedia

Bromine is a chemical element with the symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a similarly coloured vapour. Its properties are intermediate between those of chlorine and iodine.Isolated independently by two chemists, Carl Jacob Löwig (in 1825) and Antoine Jérôme Balard (in 1826 ...

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Brominated flame retardants European Food Safety Authority

Brominated flame retardants (BFRs) are mixtures of man-made chemicals that are added to a wide variety of products, including for industrial use, to make them less flammable. They are used commonly in plastics, textiles and electrical/electronic equipment. There are five main classes of BFRs, listed here with their common uses: Polybrominated diphenyl ethers (PBDEs) – plastics, textiles ...

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Different photolysis kinetics and photooxidation ...

Jan 01, 2013  For the anionic HO-PBDEs, substitution of Br increases BO COC and decreases E HOMO values noticeably because of the electron withdrawing effect of bromines, resulting in lower k 1O2 values of the higher brominated anionic HO-PBDEs. Variations of the apparent k 1O2 values for the six HO-PBDEs with pH can be predicted with Eq. .

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Brominated vegetable oil Podcast Chemistry World

Brominated vegetable oil, called BVO for short, is made by adding bromine across the double bonds of certain fatty acids in vegetable oil, usually soybean oil. Like plain vegetable oil, BVO does a good job of dissolving water-insoluble food flavour, fragrance and colouring agents, serving as a carrier for these agents in soft drinks, which are ...

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Specialty Surfactants - Alzo International

excellent thickener, foam builder and stabilizer for anionic and amphoteric surfactants; self-emulsifiable: 70% minimum amide content. Foamid O-20. Oleamide DEA. thickening and conditioning agent for rinse off products such as shampoos; produces luxurious creamy foam. Foamid SCE. * Cocamide DEA.

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Effect of Ni Content on Anionic Redox Activity in Ru ...

Jul 28, 2021  In this work, using the first-principles calculations, we study the effect of different Ni content on voltage profiles and anionic redox mechanisms of LNR 4 O and LN 2 R 3 O. The results show that the oxygen oxidation reaction on LNR 4 O occurs at x = 0.333, while, for LN 2 R 3 O, the anionic redox occurs at x = 0.667.

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FACT CHECK: Does Mountain Dew Contain a Chemical Known as

Mar 08, 2013  Brominated vegetable oil, or BVO, which acts as an emulsifier in citrus-flavored soda drinks, is found in about 10 percent of sodas sold in the U.S.

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Synthesis of hydroxyl-terminated polybutadiene possessing ...

Jun 15, 2010  The hydroxyl-terminated polybutadiene (HTPB) possessing high content of 1,4-units was synthesized by anionic polymerization of butadiene, using alkyllithium containing silicon-protected hydroxyl group as initiator and cyclohexane as solvent. The polymers were characterized by GPC, IR and 1H-NMR. The mechanical properties of cured films were also evaluated. The results show that the content

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Bromination of telomer mixtures derived from toluene and ...

Nov 30, 2009  Bromine content of the brominated products produced from the telomers of this invention is typically determined by use of a combustion method. The procedure of this method is as follows: A 0.04-0.08 g of sample of the Brominated Telomer is weighed on a 0.00001 g accuracy, onto ¼ sheet of creased black filter paper on a 5 place analytical balance.

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William J. Layman, Jr. Inventions, Patents and Patent ...

Apr 04, 2017  Abstract: This invention relates flame retardant compositions containing low molecular weight brominated anionic, chain transfer, vinyl aromatic polymers, hereinafter “ACTVAP”. The compositions can accommodate high bromine content while still exhibiting a low thermally labile bromine content. The compositions have glass transition temperatures, Tg, that are predictive of acceptable

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Catalytic Enantioselective Bromoaminocyclization and ...

Sep 22, 2020  We apply a chiral anionic phase-transfer system for the catalytic asymmetric bromoaminocyclization and bromocycloetherification of momo-functional benzo-cyclic alkenes. Various brominated tricyclic benzo-heterocycles were produced with up to 99% yields and 99% enantiomeric excess.

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Chemical and electrochemical grafting of polythiophene ...

backbone is reported. For this purpose, polystyrene was synthesized via ‘living’ anionic polymerization, and then brominated at the para position of the aromatic rings of the polystyrene (PSt-Br).

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