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Swelling of superabsorbent acrylamide/sodium acrylate hydrogels prepared using multifunctional crosslinkers
(SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY, 2002)
Superwaterabsorbent acrylamide-sodium acrylate hydrogels were prepared by free radical polymerization in aqueous solutions of acrylamide and of acrylamide with sodium acrylate as comonomer. For each copolymerization, nine ...
Dynamic swelling behavior of gamma-radiation induced polyelectrolyte poly(AAm-co-CA) hydrogels in urea solutions
(ELSEVIER SCIENCE BV, 2005)
The aim of this study was to investigate the equilibrium swelling properties in urea solutions of gamma-radiation induced polyelectrolyte copolymeric hydrogels consisting of acrylamide (AAm) and crotonic acid (CA). ...
Dissolution kinetics of malachite in ammonia/ammonium carbonate leaching
(ELSEVIER SCIENCE BV, 2005)
The leaching of oxide copper ore containing malachite, which is the unique copper mineral in the ore, by aqueous ammonia solution has been studied. The effect of leaching time, ammonium hydroxide, and ammonium carbonate ...
Swelling studies of copolymeric acrylamide/crotonic acid hydrogels as carriers for agricultural uses
(JOHN WILEY & SONS LTD, 2000)
In this study, highly swollen acrylamide/crotonic acid hydrogels tilt a rod form) containing some inorganic salts such as ammonium nitrate potassium nitrate and ammonium sulphate used as fertilizer, an agricultural drug ...
Swelling characterization of polyelectrolyte poly(hydroxamic acid) hydrogels in aqueous thiazin dye solutions
(TAYLOR & FRANCIS INC, 2006)
In this study, swelling behavior of polyelectrolyte poly(hydroxamic acid) (PHA) hydrogels have been investigated in aqueous thiazin dye solutions. PHA hydrogels were prepared by free radical polymerizations of acrylamide ...
Dissolution kinetics of chalcopyrite in acidic potassium dichromate solution
(ELSEVIER SCIENCE BV, 2006)
The dissolution of chalcopyrite in acidic potassium dichromate solution has been investigated with respect to the effects of sulphuric acid and potassium dichromate concentrations, by changing stirring speed, leaching ...