A method for regio- and stereoselective anti-addition of the perfluoroalkyl and the triflate group of phenyl(perfluoroalkyl)iodonium triflates to alkynes is presented. The radical reaction uses cheap CuCl as a smart initiator and can be conducted in gram scale. The perfluoroalkyltriflated products are readily further functionalized, rendering this transformation valuable.

In this study, the compatibility of the blends of polypropylene (PP) and polybutene-1(PB-1) homopolymer before and after long chain branching process were studied. The blends were prepared and long-chain branched directly via reactive extrusion process in presence of free radical initiator and trimethylolpropane tri methacrylate (TMPTMA) poly functional monomer. The optimum percentage of TMPTMA...

Antioxidants are vital substances which possess the ability to protect the body from damage caused by free radical induced oxidative stress. A variety of free radical scavenging antioxidants exist within the body which many of them are derived from dietary sources like fruits, vegetables and teas. In this study the antioxidant activity and radical scavenging activity of methanolic extracts of s...

Chemical modification of chloromethylstyrene - styrene copolymer throughout reaction p-substituted carboxylic acid group bis-(4,4`-dibromo)-4``-triphenylamine with the chloromethyl attached to a phenyl was carried out on soluble and polymeric cross-linked copolymer. oxidation neutral triphenylamine antimony pentachloride in dichloromethane solvent gives corresponding cation radical salt counter...

Recent studies have paid particular attention to polymer-nanoparticle composite materials considering they a number of interesting properties, which include optical, thermal, electrical, and others (Reyna-Gonzalez et al., 2009; Yakuphanoglu 2010). In this study, free radical polymerization process was used create copolymer N-vinylcarbazole (NVC) benzyl methacrylate (BZMA) at 25–75 mol% each. Th...