نتایج جستجو برای: concentration of poly ethylene glycol 400 0
تعداد نتایج: 21345617 فیلتر نتایج به سال:
Hydrogels which are hydrophilic and porous materials have recently emerged as promising systems for filtration applications. In our study, we prepare hydrogel membranes by the photopolymerization of a mixture poly (ethylene glycol) diacrylate (PEGDA) large poly(ethylene (PEG) chains 300 000 g.mol-1 in presence photoinitiator. We find that this addition free PEG induces non-linear increase water...
A novel nanocomposite hydrogel with controllable multiple thermosensitivity has been synthesized by introducing poly(ethylene glycol) (PEG) into clay/poly(N-isopropylacrylamide) (PNIPAAm) nanocomposite hydrogel, which exhibits double thermosensitive phase transition: a UCST and a LCST spontaneously.
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...
The addition of surfactants to pesticide spray applications is an important method improve the atomization and coverage droplets on target. effects different types spraying have been extensively studied, but there few studies commonly used surfactant polyethylene glycol so far. This article compares effect 20,000 deposition characteristics by measuring droplet size collection line when concentr...
Partition behavior of nine small organic compounds and six proteins was examined in poly(ethylene glycol)-8000-sodium sulfate aqueous two-phase systems containing 0.5M osmolyte (sorbitol, sucrose, trehalose, TMAO) and poly(ethylene glycol)-10000-sodium sulfate system, all in 0.01M sodium phosphate buffer, pH 6.8. The differences between the solvent properties of the coexisting phases (solvent d...
Graft copolymer networks of poly(methacrylic acid-g-ethylene glycol) were prepared by free radical solution UV-polymerization of methacrylic acid (MAA) and poly(ethylene glycol) monomethacrylate. Dynamic swelling studies indicated that complexation/decomplexation processes occurred due to hydrogen bonding between the carboxylic groups of the poly(methacrylic acid) (PMAA) and the ether groups of...
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