Convenient synthetic method of starch/lactic acid graft copolymer catalyzed with sodium hydroxide

Sodium Hydroxide Catalyzed Dehydrocoupling of Alcohols with Hydrosilanes.

An O-Si bond construction protocol employing abundantly available and inexpensive NaOH as the catalyst is described. The method enables the cross-dehydrogenative coupling of an alcohol and hydrosilane to directly generate the corresponding silyl ether under mild conditions and without the production of stoichiometric salt byproducts. The scope of both coupling partners is excellent, positioning...

Convenient method for the synthesis of symmetrical disulfides using 1-butyl- 3-methylimidazolium hydroxide in water

evaluation of fat atrophy in patients with dermis fat graft of orbit by ct-scan

چکیده ندارد.

Leaching Kinetics of Stibnite in Sodium Hydroxide

Spherical pellets of antimony sulphide were dissolved in 1 molar sodium hydroxide solutions at different temperatures. It was found that the shrinking core with ash layer model could satisfactorily explain the dissolution process. Using this model it was found that initially the rate controlling step is a chemical reaction with activation energy of 10.2 kJ/mol. As the ash layer builds up, diffu...

Preparation and Application of Dimer Acid/lignin Graft Copolymer

Dimer acid (DA) was grafted onto lignin (EHL) to form a graft copolymer DA-g-EHL. The selection of the reaction type and the optimization of the reaction conditions for the grafting reaction were conducted through orthogonal and single factor experiments. FT-IR and thermal analysis were used to characterize the graft product. It was found that, compared with free radical grafting, DA can be gra...