Polyvinyl alcohol and polyethylene glycol as protectants against fluid-mechanical injury of freely-suspended animal cells (CRL 8018)

The influence of sodium dodecyl sulphate (SDS) on the adsorption properties of non-ionic polymers, i.e. polyethylene glycol (PEG) and polyvinyl alcohol (PVA), at the Al2O3/solution interface was studied. Measurements for various molecular weights and for various amounts of functional groups on the polymer macromolecules were undertaken and the results obtained discussed in the light of these variations. Studies of the mutual interactions of the polymer–surfactant system in aqueous solution were helpful in explaining the equilibria involved in the Al2O3/polymer solution system in the presence of SDS. The thickness of the adsorption layer was determined by viscometric methods and the influence of the degree of hydrolysis of PVA on the structure of the adsorption layer demonstrated.

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Effect of carbon nanotubes reinforcement on the polyvinyl alcohol – polyethylene glycol double-network hydrogel composites: A general approach to shape memory and printability

European Polymer Journal ◽

10.1016/j.eurpolymj.2018.11.006 ◽

2019 ◽

Vol 110 ◽

pp. 114-122 ◽

Cited By ~ 11

Author(s):

Hasfi Nurly ◽

Qian Yan ◽

Bo Song ◽

Yusheng Shi

Keyword(s):

Carbon Nanotubes ◽

Polyethylene Glycol ◽

Polyvinyl Alcohol ◽

Shape Memory ◽

Double Network ◽

Hydrogel Composites

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Synthesis of Gamma-Alumina Nanopowders Using Waste Metal Aluminum and Stability Surfactants

International Journal of Nanoscience ◽

10.1142/s0219581x19500145 ◽

2019 ◽

Vol 19 (02) ◽

pp. 1950014

Author(s):

Sabereh Nazari ◽

Sadegh Nazari ◽

Fariba Mansourizadeh ◽

Gholamreza Karimi

Keyword(s):

Particle Size ◽

Polyethylene Glycol ◽

Polyvinyl Alcohol ◽

Specific Surface ◽

Pore Volume ◽

Average Particle Size ◽

Average Crystallite Size ◽

Average Particle ◽

Gamma Alumina ◽

Metal Aluminum

In this study, high purity gamma-alumina nanopowders with crystalline structures have been prepared via a sol–gel process by waste metal aluminum, HCl, NaOH, Polyethylene glycol (PEG) and polyvinyl alcohol (PVA). Polyethylene glycol and polyvinyl alcohol have been used as stabilizing agents. The characterization of the samples has been performed utilizing XRD, FTIR, SEM, N2 adsorption/desorption techniques. Prepared samples of gamma-alumina at 800∘C with PEG has an average crystallite size of 2.58[Formula: see text]nm, average particle size of 21[Formula: see text]nm, specific surface area (SSA) of 65.55[Formula: see text]m2/g, and pore volume of [Formula: see text]0.06[Formula: see text]cm3/g. The average crystallite size of 3.07[Formula: see text]nm, average particle size of 31[Formula: see text]nm, specific surface area of 131.25[Formula: see text]m2/g, and pore volume of [Formula: see text]0.14[Formula: see text]cm3/g, were obtained using PVA surfactant.

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Synthesis and Property of Siloxane and other Modifier Modified Melamine Resin

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.448-453.111 ◽

2013 ◽

Vol 448-453 ◽

pp. 111-114

Author(s):

Xiao Bin Li ◽

Lu Qi

Keyword(s):

Infrared Spectroscopy ◽

Polyethylene Glycol ◽

Thermogravimetric Analysis ◽

Polyvinyl Alcohol ◽

Melamine Resin ◽

Structure And Properties ◽

Reaction Conditions ◽

And Performance ◽

Better Than

This work reports melamine resin was modified with siloxane, Polyvinyl alcohol (PVA) and polyethylene glycol (PEG) to improve its structure and properties, and accomplished a wide research and study on the effect of different reaction conditions, including temperature, PH and solid contents. Using infrared spectroscopy (FTIR), thermogravimetric analysis (TG) and DSC to analyzed the samples and study their composition and performance. The results showed that siloxane, Polyvinyl alcohol and polyethylene glycol (PEG) modifier can make the performance of the melamine better than unmodified ones.

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