Methane is transformed selectively to methanesulfonyl chloride at low temperature by liquid-phase reaction of methane with SO(2)Cl(2) in the presence of a free radical initiator and a promoter using 100% H(2)SO(4) as the solvent.

high yield photolytic reduction of a series of thiaphosphoranes z p sr to give z p h with uv-light-induced tri-n-butyltin hydride through phosphoranyl radical z p is described. this reaction is inhibited by a-methylstyrene and initiated by a radical initiator such as azobisisobutyronitrile

We have demonstrated a novel antioxidant action of ethanolamine plasmalogens both in protecting cholesterol from oxidation by free radicals and in lowering the oxidizability of membranes, along with the action of scavenging radicals, by the oxygen-uptake method using large unilamellar vesicles and the water-soluble azo-radical initiator, AAPH [2,2'-azobis-(2-amidino-propane) dihydrochloride].

we develop and study a mathematical model which describes how an inert species contained in the initial monomer/initiator mixture is redistributed by a propagating polymerization front. This study is relevant to the production of polymers for optical applications. @ 2002 Elsevier Science Ltd. All rights reserved. Keywords--Free radical polymerization, Frontal polymerization, Mathematical modeli...

Retinyl acetate suppressed the free radical-induced oxidation of methyl linoleate. Retinyl acetate was reacted with an alkylperoxyl radical in two solvent systems, methanol and benzene, The alkylperoxyl radical was generated by the thermal decompositien of a free radical initiator, 2 2'-azobis(2,4-dimethylyaleronitrile), at 370C. The reaction products were isolated by HPLC and their structures ...

Polyvinyl benzyl chloride (PVBC) was synthesized by free radical polymerization of 4-vinylbenzyl using benzoyl peroxide initiator at 60 °C. PVBC synthesised in different solvents such as toluene, xylene, 1,4-dioxane, and tetrahydrofuran. The polymers were structurally characterized 1H NMR FTIR spectroscopic techniques. thermal property the polymer investigated thermogravimetric analysis (TGA) d...

Unlike F4-neuroprostanes (F4-NeuroPs), which are relatively selective in vivo markers of oxidative damage to neuronal membranes, there currently is no method to assess the extent of free radical damage to myelin with relative selectively. The polyunsaturated fatty acid adrenic acid (AdA) is susceptible to free radical attack and, at least in primates, is concentrated in myelin within white matt...

In this study, a hydrogel composed of acrylamide (AAm) with N-vinylimidazole (NVI) as co-monomer, with a cross-linker such as N, N` Methylenebisacrylamide and potassium peroxodisulfate as an initiator solution was prepared. Poly (AAm/NVI) hydrogels were synthesized by free radical solution polymerization. Swelling experiments were performed in water at 25°C, gravimetrically. Here, it was of...