N n dimethylacetamide dmac

Manufactured by Thermo Fisher Scientific

Sourced in Belgium

N,N-dimethylacetamide (DMAc) is a clear, colorless, and polar aprotic solvent commonly used in various laboratory applications. It has a high boiling point and is miscible with water and many organic solvents. DMAc is often utilized as a solvent, reaction medium, and cleaning agent in a variety of chemical and industrial processes.

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Lab products found in correlation

6 protocols using n n dimethylacetamide dmac

Synthesis and Characterization of Polysulfone Membranes

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PSF was synthesized using 2,2-bis(4-hydroxyphenyl)propane (Bisphenol A, 97%), N,N-dimethylacetamide (DMAc, η = 0.92 mPa·s (25 °C), chemically pure), and N-methyl-2-pyrollidone (NMP, η = 1.66 mPa·s (25 °C), chemically pure) provided by Acros Organics (Geel, Belgium); 4,4′-dichlorodiphenylsulfone (DCDPS, 99%) was purchased from Alfa Aesar (Heysham, UK), potassium carbonate (chemically pure) and dimethyl sulfoxide (DMSO, η = 2.00 mPa·s (25 °C), chemically pure) were purchased from Reachem (Moscow, Russia).
To prepare the dope solutions, NMP was used as a solvent and polyethylene glycol with an average molecular weight of 400 g/mol (PEG-400, Acros Organics (Geel, Belgium)) as a pore-forming additive.

Matveev D., Raeva A., Borisov I., Vasilevsky V., Matveeva Y., Zhansitov A., Khashirova S, & Volkov V. (2023). Effect of Molecular Weight and Chemical Structure of Terminal Groups on the Properties of Porous Hollow Fiber Polysulfone Membranes. Membranes, 13(4), 412.

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Membrane Fabrication from Polyethersulfone

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Polyethersulfone (PES; Ultrason E6020P) with a molecular weight of 58,000 g mol⁻¹ was purchased from BASF. Microcrystalline cellulose (MCC; particle size: 20 μm), humic acid (HA; technical grade) and sodium hydroxide (NaOH) were supplied by Sigma-Aldrich, while N,N-dimethylacetamide (DMAc) was obtained from Acros Organic. Lithium chloride (LiCl) was purchased from Merck.

Nazri A.I., Ahmad A.L, & Hussin M.H. (2021). Microcrystalline Cellulose-Blended Polyethersulfone Membranes for Enhanced Water Permeability and Humic Acid Removal. Membranes, 11(9), 660.

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Synthesis of Fluorinated Polymer Composites

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Vinylidene fluoride (VDF, Dyneon GmbH, Burgkirchen a.d.Alz, Germany, 99.5%), styrene (S, Sigma-Aldrich, Taufkirchen, Germany, 99.5%), methyl methacrylate (MMA, Sigma-Aldrich, Taufkirchen, Germany, 99%), di-tert-butylperoxide (DTBP, Merck, Darmstadt, Germany, 98%), 1-iodoperfluorohexane (ABCR, Karlsruhe, Germany, 99%), 1,4-diiodooctafluorobutane (Dyneon GmbH, Burgkirchen a.d.Alz, Germany), dimanganese decacarbonyl (Sigma-Aldrich, Taufkirchen, Germany, 98%), methanol (95%), hydrochloric acid (37%), N,N-dimethyl acetamide (DMAc, Acros, Geel, Belgium, 99%), ammonium 4,8-dioxa-3H-perfluorononanoate (Dyneon, GmbH, Burgkirchen a.d.Alz, Germany), ammonium peroxydisulfate (Fluka, Honeywell, Hannover, Germany, ≥98.0%), carbon dioxide (Air Liquide, Paris, France, 99.8%), N,N-dimethylformamide-d₇ (Deutero GmbH, Kastellaun, Germany, 99.5%), and acetone-d₆ (Deutero GmbH, Kastellaun, Germany, 99.8%) were used as received.

Golzari N., Adams J, & Beuermann S. (2017). Inducing β Phase Crystallinity in Block Copolymers of Vinylidene Fluoride with Methyl Methacrylate or Styrene. Polymers, 9(8), 306.

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Emulsion Polymerization of Vinylidene Fluoride

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Vinylidene fluoride (Dyneon, 99.5%), the chain transfer agent 1,4−diiodooctafluorobutane, the emulsifier ammonium 4,8-dioxa-3H-perfluorononanoate (ADONA, Dyneon, Gendorf, Germany), and the initiator ammonium peroxydisulfate (APS) (≥98.0%, Fluka) were used as received. Ultrapure and deionized water (electric conductivity: 0.055 µS∙cm⁻¹) served as continuous phase for the emulsion polymerization. N,N−dimethyl acetamide (DMAc) (99%, Acros, Nidderau, Germany) containing 0.1% of LiBr (≥99%, Riedel-de-Häen) is used as eluent for size-exclusion chromatography. N,N−dimethylformamide−d₇ (99.5%, Deutero GmbH, Kastellaun, Germany) and acetone−d₆ (99.8%, Deutero GmbH, Kastellaun, Germany) were used as received.

Brandl F., Drache M, & Beuermann S. (2018). Kinetic Monte Carlo Simulation Based Detailed Understanding of the Transfer Processes in Semi-Batch Iodine Transfer Emulsion Polymerizations of Vinylidene Fluoride. Polymers, 10(9), 1008.

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Recycled Soil Blend Characterization

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N,N-dimethylacetamide (DMAc) (99 + % extra pure, A0403006) and anhydrous lithium chloride (LiCl 99 %, A0386841) were purchased from Acros Organics™ (NJ, USA). Glycerol (certified ACS, 202397) was purchased from Fisher Scientific™ (MA, USA). Low-quality cotton was obtained from the Fiber and Biopolymer Research Institute, Texas Tech University (Lubbock, TX, USA). Organic potting soil (All-Natural Premium Outdoor Potting Mix, Kellogg Garden Products Corporate, CA, USA) was purchased from Home Depot. It contained recycled forest products, perlite, sand, ground dolomitic limestone, bat guano, kelp meal, peat moss, coir, poultry manure, and plant nutrients: total nitrogen 0.3%, available phosphate 0.1%, soluble potash 0.1%. Deionized (DI) water was purchased from AquaOne (Amarillo, TX, USA).

Rumi S.S., Liyanage S, & Abidi N. (2024). Soil burial-induced degradation of cellulose films in a moisture-controlled environment. Scientific Reports, 14, 6921.

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Polymer Functionalization and Characterization

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HPC (DS 3.00, MS 3.46, Mw 1.16 × 10 5 ) was purchased from Nanjing Yeshun Industry and International Trading Co. Ltd., Jiangsu, China, and first dried completely at 110 °C for 10 h before use in the reaction. 1,1'-Carbonyldiimidazole (CDI; mol. weight: 162.15 g/mol, m.p.: 117-122 °C), 4methylbenzenesulfonyl chloride (tosyl chloride; mol. weight: 190.65 g/mol, m.p. 65-69 °C), imidazole, NaOH, ethanol and methanol were purchased from Sigma-Aldrich, USA. Gemifloxacin mesylate (GEM) was received as a gift from Candid Pharmaceuticals, Sialkot, Pakistan, as per US Pharmacopoeia standard. N,N-dimethylacetamide (DMAc; mol. weight: 87.12 g/mol, b.p. 164.0 °C) was purchased from ACROS Organics. Diethyl ether was procured from Lab Scan; acetone was obtained from Merck. Dimethylsulfoxide (DMSO; mol. weight: 78.13 g/mol) was purchased from Panreac Sintesis, Barcelona. Regenerated cellulose tubular membrane (wall thickness 23 µm, dry cylinder diameter 21.0 mm) with nominal MWCO value of 12000-14000 was procured from Cellu•Sep ® T4 (USA). Deionized water was used for research purpose.

Hussain M.A., Malik I., Shad I., Amjad F., Amin M.U., Tahir M.N., Ullah N., Ashraf M.A., & Irfan M. (2021). DESIGN, CHARACTERIZATION AND ENHANCED BIOAVAILABILITY OF HYDROXYPROPYLCELLULOSE-BASED NOVEL BIOCONJUGATES FOR INCLUSION OF A FLUOROQUINOLONE ANTIBIOTIC – GEMIFLOXACIN. Cellulose Chemistry and Technology, 55(9-10), 1019-1027.

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