One-step Preparation of Comb-like Surfactants Containing Poly(ethylene oxide) Methyl Ether and Linear Alkyl Grafts

2011 ◽  
Vol 48 (5) ◽  
pp. 415-420 ◽  
Author(s):  
W. Zhang ◽  
Z. Du ◽  
W. Wang ◽  
G. Wang ◽  
S. Lin
Keyword(s):  
Ethylene Oxide ◽  
Methyl Ether ◽  
One Step ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

scholarly journals Rheological, Microstructural and Thermal Properties of Magnetic Poly(Ethylene Oxide)/Iron Oxide Nanocomposite Hydrogels Synthesized Using a One-Step Gamma-Irradiation Method

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1823
Author(s):  
Ivan Marić ◽  
Nataša Šijaković Vujičić ◽  
Anđela Pustak ◽  
Marijan Gotić ◽  
Goran Štefanić ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Ethylene Oxide ◽  
Molar Fraction ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Γ Irradiation ◽  
Nanocomposite Hydrogels ◽  
One Step ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
The One

Magnetic polymer gels are a new promising class of nanocomposite gels. In this work, magnetic PEO/iron oxide nanocomposite hydrogels were synthesized using the one-step γ-irradiation method starting from poly(ethylene oxide) (PEO) and iron(III) precursor alkaline aqueous suspensions followed by simultaneous crosslinking of PEO chains and reduction of Fe(III) precursor. γ-irradiation dose and concentrations of Fe3+, 2-propanol and PEO in the initial suspensions were varied and optimized. With 2-propanol and at high doses magnetic gels with embedded magnetite nanoparticles were obtained, as confirmed by XRD, SEM and Mössbauer spectrometry. The quantitative determination of γ-irradiation generated Fe2+ was performed using the 1,10-phenanthroline method. The maximal Fe2+ molar fraction of 0.55 was achieved at 300 kGy, pH = 12 and initial 5% of Fe3+. The DSC and rheological measurements confirmed the formation of a well-structured network. The thermal and rheological properties of gels depended on the dose, PEO concentration and initial Fe3+ content (amount of nanoparticles synthesized inside gels). More amorphous and stronger gels were formed at higher dose and higher nanoparticle content. The properties of synthesized gels were determined by the presence of magnetic iron oxide nanoparticles, which acted as reinforcing agents and additional crosslinkers of PEO chains thus facilitating the one-step gel formation.

One-step fabrication of antibacterial (silver nanoparticles/poly(ethylene oxide)) – Polyurethane bicomponent hybrid nanofibrous mat by dual-spinneret electrospinning

2012 ◽  
Vol 134 (2-3) ◽  
pp. 557-561 ◽  
Author(s):  
Leonard D. Tijing ◽  
Michael Tom G. Ruelo ◽  
Altangerel Amarjargal ◽  
Hem Raj Pant ◽  
Chan-Hee Park ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Ethylene Oxide ◽  
One Step ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene

One-step synthesis of poly(ethylene oxide)/gold nanocomposite hydrogels and suspensions using gamma-irradiation

2020 ◽  
Vol 170 ◽  
pp. 108657
Author(s):  
Ivan Marić ◽  
Nataša Šijaković Vujičić ◽  
Anđela Pustak ◽  
Marijan Gotić ◽  
Tanja Jurkin
Keyword(s):  
Ethylene Oxide ◽  
Gamma Irradiation ◽  
Nanocomposite Hydrogels ◽  
One Step ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene
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