نتایج جستجو برای: peg 400

تعداد نتایج: 85621  

2009
P. R. Sathesh Babu C. V. S. Subrahmanyam J. Thimmasetty R. Manavalan K. Valliappan S. A. Kedarnath

Solubility enhancement of meloxicam and rofecoxib, which are poorly soluble in water, was attempted. These are available in the form of solid dosage forms but not in solution dosage forms due to their low aqueous solubility. In this work, aqueous solubility of meloxicam and rofecoxib was improved using the biocompatible solvents such as ethanol, propylene glycol, glycerin, and PEG 400. Physico-...

Journal: :The Journal of experimental biology 2012
Chris M Wood Martin Grosell

Paracellular permeability and absorptive water flux across the intestine of the euryhaline killifish were investigated using in vitro gut sac preparations from seawater- and freshwater-acclimated animals. The permeability of polyethylene glycol (PEG), a well-established paracellular probe, was measured using trace amounts of radiolabelled oligomers of three different molecular sizes (PEG-400, P...

Journal: :Energies 2021

Agave bagasse is a residual biomass in the production of alcoholic beverage tequila, and therefore, it promising raw material development biorefineries using hot compressed water pretreatment (hydrothermal processing). Surfactants application has been frequently reported as an alternative to enhance monomeric sugars efficiency possibility reduce enzyme loading required. Nevertheless, surfactant...

ژورنال: :علوم و فناوری های پدافند نوین 0
ابوالقاسم مقیمی abolghasem moghimi islamic azad university of tehran north branchدانشگاه آزاد اسلامی واحد تهران شمال، دانشکده شیمی مهدیه سادات داودی mahdieh sadat davoudi islamic azad university of tehran north branchدانشگاه آزاد اسلامی واحد تهران شمال، دانشکده شیمی مصطفی وجدانی mostafa vojdani imam hosein universityدانشگاه جامع امام حسین (ع)، دانشکده شیمی

چکیده:   سووفلوران جدیدترین هوشبر استنشاقی می باشد که بدلیل ویژگی های منحصر به فرد خود، بسیار مورد توجه قرار گرفته و استفاده از آن به صورت روز افزون در حال گسترش می باشد. تا کنون روشهای مختلفی برای سنتز آن گزارش شده که بهترین آن، روش دو مرحله ای است. در مرحله اول الکل 3،3،3،1،1،1- هگزا فلوئورو-2- پروپانول (hfip) با alcl3 و تری اکسان به سووکلران تبدیل شده و در مرحله بعد سووکلران با kf در حلال pe...

Journal: :Journal of colloid and interface science 2000
Chang Chang Tsai Wu

Polyethylene glycol (PEG) used as a brightening and stabilization agent at the concentration of 30 mg dm(-3) is a major organic additive in the copper electroplating solution. Activated carbon, Calgon Filtrasob 400, is used as the adsorbent to remove the PEG from the used electroplating solution in order to broaden the appeal of recycling it. The equilibrium of adsorption is attained within 14 ...

2008
Ufuk Yildiz Katharina Landfester

Macromonomeric azo initiators (macroinimers, MIM) which have the properties of macromonomers, macrocrosslinkers and macroinitiators in a macrostructure were used in miniemulsion polymerization of styrene in the presence or absence of any other stabilizer and initiator. MIMs were prepared from the reaction of 4,40-dicyano-4,40-azovaleryl chloride, with poly(ethylene glycol) (PEG) of different mo...

Journal: :International Journal of Applied Pharmaceutics 2021

Objective: This study aimed to find the best SNEDDS meloxicam formula and analyze release kinetics of non-SNEDDS using DDSolver. 
 Methods: Meloxicam was prepared sunflower seed oil, Cremophor RH 40 as a surfactant, polyethylene glycol (PEG) 400 co-surfactant. Results: The obtained subjected in vitro dissolution analyzed shows one selected consists 10% 70% cremophor 40, 20% PEG with 20.5 n...

Journal: :Sustainable Environment Research 2021

Abstract The vast amount of not-recycled polyethylene terephthalate (PET) bottle waste is a serious threat to the environment. In order utilize waste, PET ultrafiltration membranes were prepared using as raw material by phase inversion technique. Low molecular weight glycol (PEG 400) was used additive for membranes. resin also membrane compare properties from and those resin. that showed simila...

In the present study, the permeabilities of CO2 and CH4 in terms of ideal and actual CO2/CH4 selectivity were investigated through the synthesized membranes of poly (ether-block-amide) (Pebax 1657) accompanied with poly (ethylene glycol) (PEG 400) and NH2-MIL125 nanoparticles. NH2-MIL125 nanofillers were added to the blend of PEG...

2014
Yesim Hepuzer Gursel Ayfer Sarac Bahire Filiz Senkal

A poly(ethylene glycol) (PEG) based macroinitiator (MI) with terminal chloride atom at both ends was prepared by the reaction of PEG-400 with chloroacetyl chloride and used for the cationic polymerization of dodecyl vinyl ether (DVE) yielding ABA type block copolymer. The block copolymer was then used as the surfactant for the emulsion polymerization of vinyl acetate and styrene in the presence...

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