Journal articles: 'Ammonium(benzyl trimethyl) bromure'

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Komendová-Vlašánková, Renata, and Lumír Sommer. "Separation and Preconcentration of Platinum Group Metals and Gold on Modified Silica and XAD Sorbents in the Presence of Cationic Surfactants for Their Determination by ICP-AES." Collection of Czechoslovak Chemical Communications 67, no. 4 (2002): 454–70. http://dx.doi.org/10.1135/cccc20020454.

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Various modified silica sorbents and unmodified silica were tested for the separation and preconcentration of 10-200 ng cm-3 from 50-1 000 cm3 sample volume of platinum group metals (PGMs), Pt(IV, II), Pd(II), Ir(IV), Rh(III), Os(VI), Ru(IV) and Au(III) in the form of ion associates of their chloro and bromo complexes with cationic surfactants. [1-(Ethoxycarbonyl)pentadecyl]trimethylammonium bromide (Septonex®), benzyl(dodecyl)dimethylammonium bromide (Sterinol®), trimethyl(tetradecyl)ammonium bromide or hexadecyl(trimethyl)ammonium chloride and 0.1 M HCl or 0.1 M HBr are suitable for the purpose. 100% recovery for Pd(II), Pt(IV) and Au(III) was obtained with octadecyl silicas Separon™ SGX C18, Separon™ SGX RPS and Phenyl™ silica in the presence of 0.006 M Septonex® or 0.003 M Sterinol®. The retained PGMs and Au(III) were eluted with acetonitrile and determined by inductively coupled plasma atomic emission spectrometry (ICP-AES) after evaporation of organic solvent in the presence of 0.1 M HCl. The enrichment factor on Separon™ SGX RPS reaches 100. A 1 000 : 1 excess of Cl-, NO3-, SO42-, Na+, K+, Ca2+, Mg2+, Fe3+ or Al3+ does not interfere with the preconcentration of PGMs and Au(III) on this sorbent. With the silica-based anion exchanger Separon™ SGX AX, the 100% recovery is observed for Ir(IV), Pd(II), Pt(IV) when the elution is performed with 5 M HCl or 5 M HNO3. Macroporous sorbents Amberlite™ XAD2 and Amberlite™ XAD4 are suitable for the retention of Au(III), Pd(II) and Pt(IV) from 0.1 M HCl and 0.006 M Septonex®. 100% recovery is achieved using acetonitrile as eluent but there is no preference of these sorbents to modified silica. In this way, the recovery of 0.1-0.2 μg cm-3 Au(III), Pd(II), Pt(IV) was also successfully tested with spiked matrices of soil extracts, power station dust samples and natural waters.

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Reddy, K. Rajendar, K. C. Rajanna, K. Uppalaiah, and S. Ramgopal. "Cetyltrimethylammonium Bromide as an Efficient Catalyst for Regioselective Bromination of Alkoxy Naphthalenes with Trimethyl Benzyl Ammonium Tribromide: Synthetic and Kinetic Approach." International Journal of Chemical Kinetics 46, no. 1 (October 5, 2013): 10–23. http://dx.doi.org/10.1002/kin.20821.

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Kuczera, Janina, Teresa E. Krai, Marian Podolak, and Stanisław Przestalski. "A Joint Effect of Cationic and Anionic Amphiphilic Compounds on the Desorption of Calcium Ions from Lecithin Liposome Membranes." Zeitschrift für Naturforschung C 54, no. 5-6 (June 1, 1999): 429–37. http://dx.doi.org/10.1515/znc-1999-5-620.

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Abstract The aim of the work was to determine the synergism and antagonism of mixtures of the cationic amphiphilic compounds: N-benzyl-N,N-dimethyl-N-tetradecylammonium chloride (BD TA), N-benzyl-N,N-dimethyl-N-dodecylammonium chloride (BDDA), N-methyl-N-te-tradecyl-morpholinium bromide (MTM), N,N,N-trimethyl-N-tetradecylammonium bromide (TMTA) and those of tripropyltin chloride in a mixture with amphiphilic anionic compounds (a homologous series of sodium alkylsulfonates with n = 2, 4, 6, 8, 10, 12 and 14 alkyl carbon atoms) in the process of calcium ion desorption from liposome lecithin membranes. Radioactive labels and spin labels were used in the investigations. All compounds studied caused an increase in the kinetic rate constant of calcium ion desorption from liposome membranes with increasing concentration. In case of mixtures containing cationic and anionic compounds both synergism and antagonism were observed. It was shown that the regulatory effect depended on the properties of both cationic and anionic compounds. A mixture of the most effective cationic compound (BDTA) with each of the anionic compounds decreased the effect. Mixtures of the remaining ammonium com pounds with sodium alkylsulfonates produced both synergism and antagonism. Anionic com pounds with short chains increased, and with longer chains decreased efficiency, while com pounds with comparable chains caused totally blocked desorption. A mixture of an organometallic compound having three short chains with anionic compounds gave a reversed effect: short-chain compounds caused a decreased and those with long-chains -increased efficiency of tripropyltin chloride. Studies with spin labels supported the conclusion that the most important factor responsi ble for the regulatory effect is the molecular shape of the complexes formed in a mixture of both groups of compounds -a factor that determines membrane packing density

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Penfold, J., E. Staples, I. Tucker, L. Soubiran, and R. K. Thomas. "Comparison of the Coadsorption of Benzyl Alcohol and Phenyl Ethanol with the Cationic Surfactant, Hexadecyl Trimethyl Ammonium Bromide, at the Air–Water Interface." Journal of Colloid and Interface Science 247, no. 2 (March 2002): 397–403. http://dx.doi.org/10.1006/jcis.2001.8041.

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WATANABE, M., K. LEE, K. GOTO, S. KUMAGAI, Y. SUGITA-KONISHI, and Y. HARA-KUDO. "Rapid and Effective DNA Extraction Method with Bead Grinding for a Large Amount of Fungal DNA." Journal of Food Protection 73, no. 6 (June 1, 2010): 1077–84. http://dx.doi.org/10.4315/0362-028x-73.6.1077.

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To identify a rapid method for extracting a large amount of DNA from fungi associated with food hygiene, extraction methods were compared using fungal pellets formed rapidly in liquid media. Combinations of physical and chemical methods or commercial kits were evaluated with 3 species of yeast, 10 species of ascomycetous molds, and 4 species of zygomycetous molds. Bead grinding was the physical method, followed by chemical methods involving sodium dodecyl sulfate (SDS), cetyl trimethyl ammonium bromide (CTAB), and benzyl chloride and two commercial kits. Quantity was calculated by UV absorbance at 260 nm, quality was determined by the ratio of UV absorbance at 260 and 280 nm, and gene amplifications and electrophoresis profiles of whole genomes were analyzed. Bead grinding with the SDS method was the most effective for DNA extraction for yeasts and ascomycetous molds, and bead grinding with the CTAB method was most effective with zygomycetous molds. For both groups of molds, bead grinding with the CTAB method was the best approach for DNA extraction. Because this combination also is relatively effective for yeasts, it can be used to extract a large amount of DNA from a wide range of fungi. The DNA extraction methods are useful for developing gene indexes to identify fungi with molecular techniques, such as DNA fingerprinting.

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Choe, Yoong-Kee, Cy Fujimoto, Kwan-Soo Lee, Luke T. Dalton, Kathy Ayers, Neil J. Henson, and Yu Seung Kim. "Alkaline Stability of Benzyl Trimethyl Ammonium Functionalized Polyaromatics: A Computational and Experimental Study." Chemistry of Materials 26, no. 19 (October 2014): 5675–82. http://dx.doi.org/10.1021/cm502422h.

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Kolhe, Shailesh M., and Ashok Kumar. "Radiation-induced grafting of vinyl benzyl trimethyl ammonium chloride onto nylon-6 fabric." Radiation Physics and Chemistry 76, no. 5 (May 2007): 901–6. http://dx.doi.org/10.1016/j.radphyschem.2006.09.004.

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Ritonga, Ahmad Hafizullah, Barita Aritonang, and Liver Iman Putra Zai. "MODIFIKASI KOPOLIMER KARET ALAM SIKLIS GRAFTING ASAM OLEAT MENGGUNAKAN INISIATOR BENZOIL PEROKSIDA DAN BAHAN PENGISI BENTONIT-CETIL TRIMETIL AMONIUM BROMIDA." JURNAL KIMIA MULAWARMAN 16, no. 1 (November 29, 2018): 40. http://dx.doi.org/10.30872/jkm.v16i1.726.

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Research on the modification of Cyclic Natural Rubber (CNR) grafting Oleic Acid (OA) copolymer using initiator of Benzoyl Peroxide (BPO) and the filler of bentonite-Cetil Trimethyl Ammonium Bromide (CTAB) has been carried out, which aims to determine the method of modifying Cyclic Natural Rubber (CNR) and Oleic Acid (OA) so it can produce CNR-g-OA copolymer through grafting method with BPO initiator mixed together with bentonite-CTAB. This research was conducted in three stages. The first stage is the process of dissolving CNR using xylene. The second stage is the process of mixing CNR solution and OA with the composition (70:30) phr, followed by the addition of BPO initiator and bentonite-CTAB filler. The third stage is characterization using FTIR and Scanning Electron Microscopy (SEM). The results of the analysis using FT-IR showed an absorption at 1708,23 cm-1 which indicated the presence of C=O bonds from oleic acid which had been grafted on CNR, and increased intensity after addition of bentonite-CTAB at 1568,96 cm-1; 1446,13 cm-1; 1255,66 cm-1; and 866,94 cm-1. Characterization results using SEM showed that the mixing of Bentonite-CTAB in KAS-g-OA was evenly distributed and quite homogeneous.

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El-Dossoki, Farid I., Esam A. Gomaa, and Osama K. Hamza. "Solvation Thermodynamic Parameters for Alkyl Benzyl Dimethyl Ammonium Chloride and Cetyl Trimethyl Ammonium Chloride Surfactants in Water and Alcoholic-Water Solvents." Journal of Chemical & Engineering Data 64, no. 10 (September 11, 2019): 4482–92. http://dx.doi.org/10.1021/acs.jced.9b00527.

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Huang, Lijie, Xiaoxue Han, Haobin Chen, Shuxiang An, Hanyu Zhao, Hao Xu, Chongxing Huang, Shuangfei Wang, and Yang Liu. "Preparation and Barrier Performance of Layer-Modified Soil-Stripping/Cassava Starch Composite Films." Polymers 12, no. 7 (July 20, 2020): 1611. http://dx.doi.org/10.3390/polym12071611.

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In this study, we investigated the barrier properties of a montmorillonite-reinforced biomass material, starch. Organically modified montmorillonite materials were prepared from natural montmorillonite by reacting it with dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride or octadecyl trimethyl ammonium chloride under ultrasonic conditions. The composite starch films incorporated with these organically modified montmorillonite samples were characterized by scanning electron microscopy, transmission electron microscopy, infrared spectroscopy and X-ray diffraction. The results showed that the introduction of montmorillonite decreases the transmittance of the composite film by 10% in the visible region and significantly inhibits UV-light transmittance. The decomposition temperature of the composite film ranges from 200 to 500 °C, with a weight loss rate of 80%. The distance between the montmorillonite layers increases from 0.14 nm in the non-magnetized state to 1.49 nm after magnetization. The oxygen permeability of the starch film modified by organic montmorillonite (0.067 cm3/m2·d) is lower than that of the montmorillonite starch film without magnetization (0.097cm3/m2·d). The oxygen barrier capacity is close to zero. Particularly in the ordered magnetic montmorillonite starch composite film, the oxygen barrier ability is the best. Therefore, modified montmorillonite could serve as an excellent reinforcing agent for cassava starch films and effectively improve the oxygen barrier performance of the films.

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Vega Paz, A., F. De J. Guevara Rodríguez, J. F. Palomeque Santiago, and And N. Victorovna Likhanova. "Polymer weight determination from numerical and experimental data of the reduced viscosity of polymer in brine." Revista Mexicana de Física 65, no. 4 Jul-Aug (July 1, 2019): 321. http://dx.doi.org/10.31349/revmexfis.65.321.

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The molecular weight of poly[acrylamide-co-vinylpyrrolidone-co-(vinyl benzyl) trimethyl ammonium]chloride is determined from numerical and experimental data of the reduced viscosity of polymer in brine (with 0.1M NaCl) at normal temperature and pressure. The methodology is based on the numerical results of the mean radius of gyration of polymer and reduced viscosity which is derived from the molecular dynamics simulation of the mixture by using the NPT ensemble. The formula of the reduced viscosity as a function of the polymer radius of gyration and the polymer concentration in brine is proposed.

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Ruman, Marek, Ewa Olkowska, Sławomir Pytel, and Żaneta Polkowska. "Surfactants in Klodnica River (Katowice, Poland). Part II. Quaternary Ammonium Compounds." Ecological Chemistry and Engineering S 25, no. 2 (June 1, 2018): 229–42. http://dx.doi.org/10.1515/eces-2018-0015.

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Abstract The paper presents methods of determination of analytes of the cation group (alkyl benzyl dimethyl ammonium (BDDA-C12-C16), alkyl trimethyl ammonium (TMA), hexadecyl piridinium (HP)) in surface water and bottom sediment samples. In the sample preparation phase the solid phase extraction (SPE) or accelerated solvent extraction/ultrasound assisted extraction (ASE/UAE)-SPE technique was used and in the identification phase and quantitative determination of analytes phase - ion chromatography technique (combined with a conductivity detector (CD)). The determined concentrations were in the range below the determined method detection limit (MDL) or method quantification limit (MQL) figures up to 0.142 ±0.023 mg/dm3 or 2014 ±10 μg/kg (liquid and solid samples, respectively). Comparing concentrations of individual analytes found in liquid and solid environmental samples we may notice that surfactants containing a shorter alkyl chain in their molecules were found in higher concentrations in liquid samples (hydrophobicity increasing with the chain length).

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Guha, Nitul Ranjan, Dhananjay Bhattacherjee, and Pralay Das. "Polystyrene trimethyl ammonium chloride impregnated Rh(0) (Rh@PMe3NCl) as a catalyst and methylating agent for esterification of alcohols through selective oxidation of methanol." Catalysis Science & Technology 5, no. 5 (2015): 2575–80. http://dx.doi.org/10.1039/c5cy00002e.

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Rh@PMe₃NCl acts as a cross-dehydrogenative coupling-methylating agent for the selective oxidation of methanol and it's in situ reaction with benzyl/alkyl alcohols for acetate ester synthesis is presented.

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Wang, Hui, Letian Wang, Shanyu Meng, Hanxue Lin, Melanie Correll, and Zhaohui Tong. "Nanocomposite of Graphene Oxide Encapsulated in Polymethylmethacrylate (PMMA): Pre-Modification, Synthesis, and Latex Stability." Journal of Composites Science 4, no. 3 (August 17, 2020): 118. http://dx.doi.org/10.3390/jcs4030118.

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The compatibility of graphene oxide with its dispersion medium (polymer) plays a critical role in the formation of nanocomposite materials with significant property improvements. Environmentally friendly miniemulsion polymerization, which allows a formation of nanoencapsulation in an aqueous phase and high molecular weight polymer/composite production is one promising method. In this study, we screened a series of amphiphilic modifiers and found that the quaternary ammonium (ar-vinyl benzyl) trimethyl ammonium chloride (VBTAC) pending carbon double bonds could effectively modify the graphene oxide (GO) to be compatible with the organophilic monomer. After that, free radical miniemulsion polymerization successfully synthesized stable latex of exfoliated poly (methyl methacrylate) (PMMA)/ GO nanocomposite. The final latex had an extended storage life and a relatively uniform particle size distribution. X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and scanning electron microscopy (SEM) analysis of this latex and its films indicated successful encapsulation of exfoliated nano-dimensional graphene oxide inside a polymer matrix.

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Radhika, V., J. Sunil Kumar, N. Srinivas, and P. Manikymba. "ION-ASSOCIATION AND ION-SOLVATION BEHAVIOR OF METHY, PHENYL AND BENZYL TRIMETHYL AMMONIUM CHLORIDE IN DMSO-WATER MIXTURES AT 298K." Rasayan Journal of Chemistry 12, no. 04 (2019): 1816–21. http://dx.doi.org/10.31788/rjc.2019.1245130.

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Zaidi, Sadaf, Devdutt Chaturvedi, Mridula Saxena, and Richa Srivastava. "Synthesis and Antimicrobial Activity of Dithiocarbamates of ω-Substituted (2-naphthyloxy)alkanes." Asian Journal of Chemistry 31, no. 10 (August 30, 2019): 2201–10. http://dx.doi.org/10.14233/ajchem.2019.22090.

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A series of dithiocarbamates of ω-substituted (2-naphthyloxy) alkanes was developed through condensation of 2-(2-chloro-alkoxy)-naphthalene to various kinds of aliphatic, aromatic, alicyclic, heterocyclic primary and secondary amines employing benzyl trimethyl ammonium hydroxide in catalytic quantity (Triton-B/CS2 system) afforded desired products in high yields (82-98 %). The complete series of synthesized compounds (4-48) were evaluated for antimicrobial activity through microdilution method using various bacterial and fungal strains. The antifungal and antibacterial values were estimated as MIC values. Fluconazole and ciprofloxacin [16 to 0.03 μg/mL] were used as the standard antifungal and antibacterial drug, respectively. Out of series of evaluated compounds, some of these compounds such as compounds 28, 29, 30, 31, 32, 33 have displayed maximum potency which is comparable to standard drugs.

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Seshadri, P. R., D. Velmurugan, J. Govindaraj, S. Kannadasan, P. C. Srinivasan, S. Shanmuga Sundara Raj, H. K. Fun, and M. J. Kim. "Trimethyl[3-methyl-1-(o-tolenesulfonyl)indol-2-ylmethyl]ammonium iodide and benzyl[3-bromo-1-(phenylsulfonyl)indol-2-ylmethyl]tolylamine." Acta Crystallographica Section C Crystal Structure Communications 58, no. 12 (November 8, 2002): o700—o703. http://dx.doi.org/10.1107/s0108270102018760.

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Klement, Rejšek. "The Quantitative Estimate of Bioavailable Inorganic Phosphorus Content in Forest Soils by the Modification of the Anion-Exchange Resin Method." Soil and Water Research 1, No. 4 (January 7, 2013): 117–26. http://dx.doi.org/10.17221/6513-swr.

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The anion-exchange resin (AER) method for the estimation of bioavailable phosphorus was slightly optimised for soils with high contents of readily soluble organic compounds as well as for those having very different clay and sand contents. The method based on a strong base anion exchanger, the active group of trimethyl benzyl ammonium, the field moist soil, and the enclosure of resin beds in a bag was very different soils under relatively uniform outer conditions where the determination of the absorbance of (blue) phosphate-molybdate complex at 870 nm is used. The motivation of the proposed method comes from distinctive features of forest soils where marked differences are commonly encountered between clay/silt/sand contents, pH-values, and the contents of organic substances. A modestly new methodology was applied for the evaluation of seasonal phosphorus dynamics in a forest environment. The recommended rapid assay for available phosphorus was statistically compared with other procedures. Considerable seasonal effects on the bioavailable P contents were demonstrated.

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Pandey, Tara P., Himanshu N. Sarode, Yating Yang, Yuan Yang, Keti Vezzù, Vito Di Noto, Soenke Seifert, Daniel M. Knauss, Matthew W. Liberatore, and Andrew M. Herring. "A Highly Hydroxide Conductive, Chemically Stable Anion Exchange Membrane, Poly(2,6 dimethyl 1,4 phenylene oxide)-b-Poly(vinyl benzyl trimethyl ammonium), for Electrochemical Applications." Journal of The Electrochemical Society 163, no. 7 (2016): H513—H520. http://dx.doi.org/10.1149/2.0421607jes.

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Ruhela, Ritesh, Nikhilesh Iyer, Manoj Yadav, Ajoy K. Singh, R. C. Hubli, and Jayant K. Chakravartty. "N,N,N-Trimethyl benzyl ammonium bis-(2-ethylhexyl)-phosphonate grafted polymer – a solid supported ionic liquid for the separation of uranium from aqueous processing streams." Green Chemistry 17, no. 2 (2015): 827–30. http://dx.doi.org/10.1039/c4gc02020k.

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The polymer has shown promise for the separation of uranium from aqueous processing streams. The sorbed complex exhibits bipyramidal geometry centered on uranium atom surrounded by eight oxygen atoms.

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Manonmani, K. N., P. Manjula, and T. Vennila. "Anti Corrosion Ability and Biocidal Efficiency of Surfactants on Mild Steel in Aqueous Environment." IRA-International Journal of Technology & Engineering (ISSN 2455-4480) 3, no. 3 (June 17, 2016). http://dx.doi.org/10.21013/jte.v3.n3.p2.

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<div>The inhibition efficiency of DMBP (Diethyl-4-methyl benzyl phosphonate) along with Biocidal action of CTAB and SDS on corrosion of mild steel in neutral aqueous medium has been evaluated by mass loss method, both in absence and presence of Zn2+. It is observed that DMBP exhibits 65% IE individually at ambient temperature. Synergistic influence of Zn2+ increases IE of DMBP to 71%. Addition of surfactants CTAB (N-Cetyl-N,N,N-Trimethyl Ammonium Bromide) and SDS ( Sodium dodecyl Benzene sulphonate) enhances the inhibition efficiency of DMBP from 65% to 96% and 92% respectively. The inhibitor system consisting of DMBP (200 ppm) + Zn2+ (90 ppm)+ CTAB (50 ppm) / SDS (40 ppm) offered maximum Biocidal efficiency (BE %) of 100% after killing of microbial bacteria present in aqueous system. FTIR spectra indicates the protective film consist of Fe2+-DMBP and Zn(OH)2.</div>

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"Ion-Conductance and Solvation Behavior of Benzyl Trimethyl Ammonium Chloride in Aqueous-Methanol Mixtures." International Journal of Engineering and Advanced Technology 9, no. 2 (December 30, 2019): 3212–14. http://dx.doi.org/10.35940/ijeat.a1270.129219.

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Ion-conductance and solvation conduct associated with diverse electrolytes in solvents is recited to be shaped by numerous aspects like density, viscosity, dielectric constant of medium, ion-solvent relations and solvent-solvent actions. Ion-solvent interactions soothe the ion by solvating it. Conductance statistics and viscosity numbers of distant electrolytes is of use in analyzing the ion solvent relations and solvation behavior of the ions. Conductance and ion-solvation behavior of benzyl trimethyl ammonium chloride has been measured in aqueous methanol and aqueous dimethyl formamide of different composition in the temperature range of 283K to 318K. Limiting molar conductance dissociation constant of the ion pair, KC are figured using Fuoss-Kraus Limiting Law. 0 rise with percentage of water in the solvent fusion. KC value is highest in pure aqueous solvent. Walden product is highest in 20% aqueous-methanol mixture signifying that ion-solvent interactions are highest at this composition of solvent combination and Walden .product as a function of the specific ion-solvent interactions including structural effects.

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Thi Hong Nhung, Vu, Huynh Thi Lan Phuong, Nguyen Huu Tho, Nguyen Thi Cam Ha, and Nguyen Van Thuc. "Study on Synthesis and Characterization of Composite Anion Exchange Membrane Based on poly(styrene-co-vinylbenzyl ammonium hydroxide) and poly(vinyl alcohol)." VNU Journal of Science: Natural Sciences and Technology 35, no. 3 (September 19, 2019). http://dx.doi.org/10.25073/2588-1140/vnunst.4849.

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In this study, poly(styrene-co-vinyl benzyl trimethyl ammonium chloride) with different styrene to vinyl benzyl chloride ratio (3:1, 1:1, 1:2) have been synthesized. The formation ofproducts was confirmed by Fourier transform infrared spectrophotometry (FTIR) and nuclear magnetic resonance spectra (1H NMR). Then, anion exchange membranes were prepared by combination of poly(styrene-co-vinyl benzyl trimethyl ammonium hydroxide) and poly (vinyl alcohol) The obtained membranes were evaluated for their own conductivity, anion exchange capacity, and thermal decomposition. The results showed that the anion exchange membrane produced from copolymer with styrene to vinyl benzyl chloride ratio 1: 2 exhibited good hydroxide conductivity of 7 mS/cm, ion exchange capacity was 0.65mmol/g and stability to 200oC. Keywords Membrane, poly(vinyl alcohol), copolymer, conductivity, fuel cell. References [1] D. J. Kim, C. H. Park, S. Y. Nam, Characterization of a soluble poly(ether ether ketone) anion exchange membrane for fuel cell application, Int. J. Hydrogen Energy 41 (2016) 7649-7658. https:// doi.org/10.1016/j. ijhydene.2015.12.088[2] J. Fu, J. Qiao, H. Lv, J. Ma, X.-Z. Yuan, H. Wang, Alkali doped poly(vinyl alcohol) (PVA) for anion-exchange membrane fuel cells - Ionic conductivity, chemical stability and FT-IR characterizations, Alkaline Electrochem. Power Sources 25 (2010) 15–23. http://doi.rog/10.1149/ 1.3315169[3] D. L. Zugic, I. M. Perovic, V. M. Nikolic, S. L. Maslovara, M. P. Marceta Kaninski, Enhanced Performance of the Solid Alkaline Fuel Cell Using PVA-KOH Membrane, Int. J. Electrochem. Sci. 8 (2013) 949-957. [4] Jikihara, R. Ohashi, Y. Kakihana, M. Higa, and K. Kobayashi, Electrodialytic transport properties of anion-exchange membranes prepared from poly(vinyl alcohol) and poly(vinyl alcohol-co-methacryloyl aminopropyl trimethyl ammonium chloride), Membranes (Basel) 3 (2013) 1-15. http: //doi.rog/10.3390/membranes3010001[5] S. Vengatesan, S. Santhi, S. Jeevanantham, G. Sozhan, Quaternized poly(styrene-co-vynylbenzyl choloride) anion exchange membranes for alkaline water electrolysers, Journal of Power Sources 84 (2015) 361-368. https://doi.org/10.1016/j.jpowsour. 2015.02.118[6] L. E. Shmukler, N. V. Thuc, and L. P. Safonova, Conductivity and thermal stability of proton-conducting electrolytes at confined geometry of polymeric gel, Ionics 19 (2013) 701-707. https:// doi.org/10.1007/s11581-012-0800-2[7] D//A. Lewandowski, K. Skorupska, J. Malinska, Novel poly(vinyl alcohol)–KOH–H2O alkaline polymer electrolyte, Solid State Ionics 133 (2000) 265-271. https://doi.org/10.1016/S0167-2738(00) 00733-5 [8] Jun F, Y. Wu, Y. Zhang, M. Lyu, J. Zhao, Novel anion exchange membranes based on pyridinium groups and fluoroacrylate for alkaline anion exchange membrane fuel cells, Int. J. Hydrogen Energy 40 (2015) 12392-12399. https://doi.org/10. 1016/j.ijhydene.2015.07.074[9] Géraldine M, M. Wessling, K. Nijmeijer Anion exchange membranes for alkaline fuel cells: A review, Journal of Membrane Science, 377(2011) 1-35. https://doi.org/10.1016/j.memsci.2011.04.043.

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Li, Hong-Ya, Xiao-Li Zhang, Biao Yan, Bin-Xia Zhao, and Jing Gao. "Preparation and catalytic performance of quaternary ammonium base resin for methanolysis of natural phosphatidylcholine." Chemical Papers 70, no. 6 (January 1, 2016). http://dx.doi.org/10.1515/chempap-2016-0023.

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AbstractReceived 1 August 2015; Revised 23 November 2015; Accepted 26 November 2015The most acceptable method for preparing glycerophosphocholine is to hydrolyse the natural phosphatidylcholine and use the quaternary ammonium base resin, as a promising heterogeneous catalyst can simplify the craft and minimise the problems existing in the homogeneous catalytic process. However, most of the resins reported in the literature are commercial trimethyl benzyl ammonium base resins and the application of other longer carbon-chain quaternary ammonium resins has not been reported. In the present work, a series of quaternary ammonium base resins were prepared from chloromethyl polystyrene microspheres and different tertiary amines and were used to prepare glycerophosphocholine from natural phosphatidylcholine. The factors affecting the exchange capacity and activity of the resin were investigated. The results showed that the resin possessed a better activity and stability under the following conditions: 1,4-dioxane as solvent, triethylamine as amination agent, reaction temperature of 60°C and amination time of 3 h; it was then used in the methanolysis of phosphatidylcholine by ultrasound-assisted reaction at ambient temperature, with the conversion of phosphatidylcholine attaining 97 % after 4 h. The catalyst was easy to separate from the reaction mixture and could also be readily available for repeat use; the activity and stability were largely consistent after six repeat uses.

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Na, Choon-Ki, and Hyun-Ju Park. "Photoinduced grafting of vinyl benzyl trimethyl ammonium chloride on polyester nonwoven fabric with surfactant coating and its anion-exchange properties." Journal of Applied Polymer Science, November 2014, n/a. http://dx.doi.org/10.1002/app.41674.

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Journal articles on the topic 'Ammonium(benzyl trimethyl) bromure'

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