objective(s): crocin, as the main carotenoid of saffron, has shown anti-tumor activity both in vitro and in vivo. crocin might interact with cellular proteins and modulate their functions, but the exact target of this carotenoid and the other compounds of the saffron have not been discovered yet. microtubular proteins, as one of the most important proteins inside the cells, have several functio...

graft polymerization of acrylic acid (aa) and ethyl methacrylate (ema) onto starch (st) were carried out in aqueous solution using ceric ammonium nitrate (can) as redox system under n2 atmosphere. the effect of ph, reaction time, temperature, concentrations of can, st, and monomers on the graft yield was investigated. monomer reactivity was in the following order: aa>ema.the kinetics of the gra...

Cloisite Na+was used as a solid surfactant (stabilizer) in Pickering emulsion polymerization of styrene-co-butyl acrylate in presence of oil soluble initiator, azobisisobutyronitrile (AIBN) and water soluble initiator, potassium persulfate (KPS). Fourier transform infrared (FTIR) spectrum approved the corporation of Cloisite Na+ layers within the polymer matrix. Effect of clay content was a...

In this work, based on experimental observations and exact theoretical predictions, the kinetic scheme of RAFT polymerization is extended to a wider range of reactions such as irreversible intermediate radical terminations and reversible transfer reactions. The reactions which have been labeled as kinetic scheme are the more probable existing reactions as the theoretical point of view. The ...

In this study, in-situ bulk polymerization was investigated for obtaining flame retardant polystyrene (PS). The halogenated and phosphoric compounds were used as flame retardant additives and Perkadox 30 was used as a synergist. The flammability of the PS was evaluated by thermogravimetric analyzer (TGA), limiting oxygen index (LOI) and UL-94 tests. The results show that polymerization process ...