منزل •Brominated Anionic Content

Brominated Anionic Content

  • 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 ...

  • JP2009521587A - Brominated anionic styrenic polymers and ...

    The catalyst is deactivated, bromide ions and catalyst residues are washed out of the reaction mixture, and the brominated anionic styrenic polymer is recovered and dried. The dried polymer has a volatile bromobenzene content of about 600 ppm (weight / weight) or less, as well as other beneficial properties.

  • 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 ...

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

    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 …

  • Electron-induced reductive debromination of 2,3,4 ...

    For the anionic states, all C-Br bonds were elongated as compared to those of the BDE-21 neutral at the corresponding brominated position. When the electron was added, one particular C–Br bond was lengthened from around 1.89 Å (in the neutral BDE-21) to around 2.4 Å (in the anionic states).

  • Low molecular weight brominated polymers, processes for ...

    The invention claimed is: 1. A flame retardant composition comprising a brominated anionic, chain transfer, vinyl aromatic polymer (ACTVAP) distribution, wherein the ACTVAP before bromination can be represented by the following formula: Ar—CRH[—CH 2 CH(Ar)] n average —CH 2 CH 2 —Ar wherein Ar is an aryl group, R is C1-C4 alkyl group or a hydrogen atom n average is the …

  • Compendium of Methods for the Determination of Toxic ...

    Method TO-9A Dioxins and Furans Page 9A-2 Compendium of Methods for Toxic Organic Air Pollutants January 1999 1.11 The s ampling and analysis method is very versatile and can be used to determine other brominated an d brominated/chlorinated dioxins and furans in the f uture when more analytical standards become available for use

  • Sequential double C–H functionalization of 2,5 ...

    An anionic species of 2,5-norbornadiene was generated and brominated using a flow reactor. In the second step, 2-bromo-2,5-norbornadiene was lithiated with LTMP and reacted with tributyltin chloride. Finally, an integrated one-flow synthesis using various electrophiles was achieved within 3 …

  • Pelletized Brominated Content

    Also preferred are pelletized brominated anionic styrenic polymers ... The mixture has an n-propyl bromide content of at least ... The toxicity of brominated sesame oil and brominated soybean ...

  • 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 …

  • BROMINATED FLAME RETARDANT - BASF SE

    For blends with vinylaromatic (co)polymers, the styrene block content of the SBCs is at least from 10 to 15% by weight, preferably at least 30% by weight. WO 2008/021417 describes corresponding symmetric brominated S-B-S triblock copolymers (Mw 135 830 g/mol; 82% of the diene units brominated).

  • Different photolysis kinetics and photooxidation ...

    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. .

  • (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.

  • 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 ...

  • US8796388B2 - Low molecular weight brominated polymers and ...

    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 melt flows and ...

  • Eco-friendly flame retardant materials: The latest ...

    The need for flame retardant materials in the workplace has increased rapidly in recent years with the increased use of plastics, which are combustible and therefore hazardous around industrial machinery. From smartphone and tablet production in the electronics industry to new energy efficiency measures in construction, employees are increasingly finding themselves working with flammable ...

  • Binding of anionic lipids to at least three nonannular ...

    Increasing the anionic lipid content of the membrane leads to a large increase in open channel probability, from approximately 2.5% in the presence of 25 mol % phosphatidylglycerol to approximately 62% in 100 mol % phosphatidylglycerol. The relationship between open channel probability and phosphatidylglycerol content shows cooperativity.

  • VYCAR EMULSIONS

    Vycar™ 590X20 PVC -17 10.0 200 49 19 Yes No anionic Vycar™ FT9 PVC -13 9.0 700 50 14 Yes No anionic Vycar™ TN 810 PVC 55 8.9 50 51.5 37 Yes No anionic Vycar™ 650X27 PVDC -4 4.5 30 54 Yes Yes anionic Vycar™ 660X14 PVDC 7 5.7 100 48.5 Yes No anionic

  • Studies directed toward total synthesis of rhodocomatulins ...

    ABSTRACTIn this work, brominated hydroxyanthraquinones, which are the core structural motif of naturally occurring bromorhodocomatulins, were successfully synthesized using Hauser annulation reaction as the key step. When brominated Michael acceptors (brominated p-quinone monoketals) and cyanophthalides or bromocyanophthalides (Hauser donors) were reacted under the annulation …

  • Electron stimulated desorption of anions from native and ...

    Although three systems, TTT, TAT, and TBrGT, are characterized by significantly lower yields (see Table I), two of them are non-brominated trimers and one is a brominated oligonucleotide; this suggests no correlation with base content. Moreover, signal standard deviations for two of the three trimers are pretty high (13% (TBrGT) and 24% (TAT)).

  • Brominated Resins | WQP

    Water without a halogen residual should be brominated to provide 0.2 parts per million (ppm) halogen residual at the end of a 30-minute contact period. However, if the source water is of poor quality or unknown quality, it is best to maintain a residual of 2.0 ppm after a 30-minute contact time.

  • Brominated styrenic polymers and their preparation ...

    This web page summarizes information in PubChem about patent CN-101213220-B. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.

  • The Interfacial Lipid Binding Site on the Potassium ...

    The quenching observed in brominated anionic lipid is ∼25% greater than that observed in di(Br 2 C18:0)PC, corresponding to a value for F/F o for Trp-67 of ∼0.27, compared to the value of ∼0.39 estimated above from the expected distance of separation between Trp-67 and the nearest fatty acyl chain of a bound nonannular lipid molecule.

  • Bromine - Wikipedia

    Bromine is the third halogen, being a nonmetal in group 17 of the periodic table. Its properties are thus similar to those of fluorine, chlorine, and iodine, and tend to be intermediate between those of the two neighbouring halogens, chlorine, and iodine.Bromine has the electron configuration [Ar]4s 2 3d 10 4p 5, with the seven electrons in the fourth and outermost shell acting as its valence ...

  • 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.

  • John F. Balhoff Inventions, Patents and Patent ...

    The solidified brominated styrenic polymer can be subdivided into a powder or pelletized form. Pellets so made have improved hardness and/or crush strength properties along with reduced formation of fines. Brominated anionic styrenic polymer is preferably used in the process.

  • US20100047577A1 - 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.

  • Global Brominated Vegetable Oil Market is anticipated to ...

    The global brominated vegetable oil market is segmented on the basis of type, application, and geography. The global Brominated Vegetable Oil market was valued at US$ 2,589.7 Mn in 2018 and is projected to increase significantly at a CAGR of 5.6% from 2019 to 2028. Brominated Vegetable Oil Market …

  • POLYPRO Anionic and Nonionic Polymers Data Sheet

    POLYPRO anionic and nonionic polymers are high molecular weight, water-soluble flocculating agents made by the co- polymerization of acrylamide with itself or various anionic (negatively charged) monomers. These polymers are available in both liquid emulsion and granular dry solid grades and cover the full spectrum of charges from 0 to .