Background & Aim: Medicinal plants can be a good replacement for common cancer treatment including chemotherapy, radiation therapy and surgery because they don’t have many side effects. The aim of this study was to investigate the effect of temperature on the free radical scavenging in the presence of medicinal plants. Experimental: For determination of free radical scavenging activity was use...

This paper reports the synthesis and characterization of monomers itaconic anhydride (IA) tri-O-acetyl-D-glucal (TAG) as well 4,6-di-O- -acetyl-D-glucal (PSG). The homopolymers copolymers IA TAG were synthesized via free radical copolymerization in bulk, using azobisisobutyronitrile an initiator with different feed ratios monomers. Their structural, molecular thermal was done 1H-NMR spectroscop...

We report a facile hydrolytic process for the preparation of CQDs/SiO2 porous nanocomposites, which show high catalytic activity and stability for the selective oxidation of cis-cyclooctene under visible light irradiation, with TBHP as a radical initiator and oxygen (in the air) as an oxidant at 80 °C.

The 2-(2-methoxyethoxy)ethyl methacrylate and molecular oxygen react at 50 °C under high pressure in the presence of a radical initiator to give water soluble, thermoresponsive poly(2-(2-methoxyethoxy)ethyl methacrylate) peroxide (PMEO(2)MAP), which degrades highly exothermically. The polymer structure has been confirmed by spectroscopy, elemental analysis, calorimetry and mass spectrometry.

A side-on liquid crystalline monomer, 2,5-bis[(4-hexyloxyphenyl)oxycarbonyl]styrene) (HPCS), was successfully polymerized via atom transfer radical polymerization (ATRP). The polymerization was catalyzed by CuBr/PMDETA in chlorobenzene at 90°C with (1-bromoethyl)benzene as the initiator. The polymers have narrow MWD. It is the second example of mesogen-jacketed liquid crystalline polymer (MJLCP...

The spatially controlled synthesis of poly(glycidyl methacrylate-co-ethylene dimethacrylate) monolithic stationary phases in polyimide coated fused silica capillaries by visible light induced radical polymerisation using a three-component initiator and a 660 nm light emitting diode (LED) as a light source is presented here.

Mixed-initiative in dialogue does not mean that either speaker is free to take the lead in the conversation at any time. Rather, who can show initiative, and when, is restricted. In this paper, we define initiative and control as two levels of dialogue phenomena, and give further evidence for our theory of restricted initiative that control belongs to the initiator of a discourse segment. We sh...

Poly(vinyl acetate)-b-polystyrene, poly(vinyl acetate)-b-poly(methyl acrylate) and poly(vinyl acetate)-b-poly(methyl methacrylate) block copolymers with low polydispersity (M(w)/M(n) < 1.25) were prepared by successive reversible addition-fragmentation chain transfer (RAFT) polymerization and atom transfer radical polymerization (ATRP) employing a bromoxanthate iniferter (initiator-transfer age...