نتایج جستجو برای: paam
تعداد نتایج: 143 فیلتر نتایج به سال:
We report the formation of a highly stable amino stationary phase on diamond and demonstrate its use in solid-phase extraction (SPE). This process consists of spontaneous and self-limiting adsorption of polyallylamine (PAAm) from aqueous solution onto oxidized diamond. Thermal curing under reduced pressure or chemical cross-linking with a diepoxide was shown to fix the polymer to the particles....
Abstract In the current study, performance of superabsorbent hydrogel composites comprised Guar gum-Pectin/Polyacrylamide/ZnO crosslinked with gamma irradiation (10 kGy) has been investigated for sustainable agriculture. The claimed (GG/PC/PAAm/ZnO x ) were characterized by FTIR, TGA, and AFM. swelling capacity data reveal that equilibrium water (EW) was increased increasing ZnO content from 60...
Hydrogels based on polyacrylamide, carboxymethylcellulose and silica are composites with good absorption release properties over time, this behavior allow their application in several areas. Thus, the aim of study was to analyze kinetic, spectroscopic, morphological, structural hydrogels prepared using different concentrations (0, 0.5, 2.5%). The results showed that swelling degree reduces incr...
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