Synthesis of high-performance superabsorbent glycerol acrylate-cross-linked poly (acrylic acid)
| Autor: | Aliyu D. Mohammed, Hermanus C.M. Vosloo, Desmond A. Young |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Acrylate 010405 organic chemistry 02 engineering and technology General Chemistry Polymer 021001 nanoscience & nanotechnology Acryloyl chloride 01 natural sciences 0104 chemical sciences Solvent chemistry.chemical_compound chemistry Polymer chemistry Glycerol Fourier transform infrared spectroscopy 0210 nano-technology Acrylic acid |
| Zdroj: | Research on Chemical Intermediates. 43:2187-2200 |
| ISSN: | 1568-5675 0922-6168 |
| Popis: | Glycerol acrylate (GA) is synthesised by an acryloylation reaction with acryloyl chloride. An ester was used as a cross-linking agent at varying proportions in the synthesis of poly acrylic acid (PAA). The amount of cross-linking density in the product (GA-PAA) and degree of neutralisation determine the absorbency of the polymer samples. A sample of GA-PAA containing 0.8 % GA was discovered to absorb 395 and 66 g/g of water and saline solution, respectively. Different solvent uptakes were tested with the sample showing varying capacity for different solvents. The temperature of the reaction was maintained at 60 °C and a reaction time of 2½ h. FTIR, TGA, SEM and XRD analyses were used to characterise the products. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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