Results 111 to 120 of about 449,273 (318)

Biological Removal of Phenolic Pollutants from Wastewater – A Short Review

open access: yesArchitecture, Civil Engineering, Environment
The article focuses on chemical compounds from the phenol group, which can persist in the natural environment and exert harmful effects on living organisms.
BLUSZCZ Agnieszka   +2 more
doaj   +1 more source

Phenolation of vegetable oils [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
Novel bio-based compounds containing phenols suitable for the syn­thesis of polyurethanes were prepared. The direct alkylation of phenols with different vegetable oils in the presence of superacids (HBF4, triflic acid) as ca­talysts was studied.
ZORAN S. PETROVIĆ, MIHAIL IONESCU
doaj  

Water‐Compatible SuFEx‐Active Diazonium Linchpin Platform for Rapid Modular Diversification and On‐DNA Functionalization

open access: yesAdvanced Functional Materials, EarlyView.
Sulfur fluoride exchange (SuFEx) is a powerful click platform, yet water‐compatible multifunctional linchpins remain elusive. Here, we report decagram‐scalable diazonium linchpins that enable rapid Pd‐catalyzed diversification and direct, catalyst‐free on‐DNA ligation in aqueous media.
Seok Ju Hong   +5 more
wiley   +1 more source

Direct hydroxylation of benzene to phenol over a new vanadium-substituted phosphomolybdate as a solid catalyst [PDF]

open access: yes, 2008
With aqueous hydroxylation as oxidant, Benzene was directly hydroxylated to phenol with phenol yield of 12.4% and selectivity of 85.7% over tetramethyl ammonium 11- molybdo -1- vanadophosphates [(CH3)4N]4PMo11VO40 as a solid catalyst, which was testifed ...
陈佳琦, 高爽, 徐杰
core  

Oxidação seletiva de benzeno a fenol utilizando catalisadores metaloporfirínicos = Selective oxidation of benzene to phenol with metaloporphyrins catalysts

open access: yesActa Scientiarum: Technology, 2007
Complexos tetrafenilporfirínicos (5,10,15,20 meso-tetrafenilporfirina, TPP) de cobre (II) [CuII(TPP)] e de ferro (III) [FeIII(TPP)Cl] foram investigados como catalisadores na oxidação direta de benzeno a fenol em fase líquida, utilizando-se ...
Mara Heloisa Neves Olsen   +6 more
doaj  

Demonstrating Vibrational Current Generation With a Self‐Assembled Bioelectret

open access: yesAdvanced Functional Materials, EarlyView.
Vacuum‐deposited films of the plant‐derived molecule, Baicalein, form a self‐assembled bioelectret exhibiting spontaneous orientation polarization and a giant surface potential. The films induce alternating current during the vibration of a movable electrode without charging treatments. Hydrocarbon protection enhances the air stability of the Baicalein
Kouki Akaike   +7 more
wiley   +1 more source

Fracture toughness of phenol formaldehyde composites post-cured in microwaves [PDF]

open access: yes, 2007
A commercial phenol formaldehyde based resole thermosetting resin supplied by Borden Chemical Australia Pty. was filled with ceramic-based fillers (Envirospheres “SLG”) to increase its fracture toughness.
Pattarachaiyakoop, N.   +4 more
core   +1 more source

Designing, synthesis and bioactivities of 4-[3-(4-hydroxyphenyl)-5-aryl-4,5-dihydro-pyrazol-1-yl]benzenesulfonamides

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2017
In this study, 4-[3-(4-hydroxyphenyl)-5-aryl-4,5-dihydro-pyrazol-1-yl]benzenesulfonamide (1–9) types compounds were synthesized and their chemical structures were confirmed by 1H NMR, 13C NMR and HRMS spectra.
Halise Inci Gul   +5 more
doaj   +1 more source

Interstitium‐Mimicking Porous Alveolar Membranes Enable Physiologic Aerosol Transport and Distinct Acute‐Chronic Lung Injury Responses

open access: yesAdvanced Functional Materials, EarlyView.
An interstitium‐mimicking membrane combines three‐dimensional alveolar geometry, high pore interconnectivity, and mechanical compliance to overcome transport limitations of conventional lung‐on‐chip barriers. The resulting platform supports physiologic aerosol transport, quantitative analysis of cross‐barrier particle movement, and reveals divergent ...
Jae‐Won Choi   +11 more
wiley   +1 more source

Supercritical fluid extraction of phenol compounds from olive leaves [PDF]

open access: yes, 1998
A clean, highly selective supercritical fluid extraction (SFE) method for the isolation of phenols from olive leaf samples was examined. Total phenol extracts were determined using the Folin-Ciocalteu reagent. Dried, ground, sieved olive leaf samples (30
Ríos, A. [0000-0003-1728-3097]   +3 more
core   +1 more source

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