Graft copolymeric flocculant using functionalized starch towards treatment of blast furnace effluent
| Autor: | Priyapratim Patra, Koushik Singha, Sagar Pal, Pinakpani Biswas, Supriya Sarkar, Suprotim Das |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Flocculation
Polymers Starch Polyacrylamide Radical polymerization 02 engineering and technology Biochemistry 03 medical and health sciences chemistry.chemical_compound Structural Biology Copolymer Fourier transform infrared spectroscopy Molecular Biology 030304 developmental biology 0303 health sciences Molecular Structure Spectrum Analysis General Medicine 021001 nanoscience & nanotechnology Grafting chemistry Chemical engineering Thermogravimetry Radius of gyration 0210 nano-technology |
| Zdroj: | International Journal of Biological Macromolecules. 125:35-40 |
| ISSN: | 0141-8130 |
| DOI: | 10.1016/j.ijbiomac.2018.12.026 |
| Popis: | Herein, a novel binary graft copolymeric flocculant [St-g-(PAAm-co-PMETAC)] has been developed using starch, polyacrylamide (PAAm) and poly (2-methacryloyloxy ethyl trimethyl ammonium chloride) (PMETAC). The copolymer has been synthesised by grafting of PAAm and PMETAC chains on starch backbone using free radical polymerization. FTIR and 1H NMR spectral analyses have been used for structural confirmation of developed copolymer. Determination of molecular weight reveals that after grafting of PAAm and PMETAC on starch, the molecular weight as well as radius of gyration have been increased as compared to pristine starch. The surface morphologies of starch and St-g-(PAAm-co-PMETAC) have been assessed by FESEM analysis. TGA/DTG along with MS analyser is able to track the pre-specified compounds over the entire period of degradation temperature. The synthesised graft copolymer i.e. St-g-(PAAm-co-PMETAC) demonstrates brilliant efficiency as flocculant towards the treatment of blast furnace effluent generated in integrated steel plant. |
| Databáze: | OpenAIRE |
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