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Synthesis and Water Absorbing Properties of KGM-g-P(AA-AM-(DMAEA-EB)) via Grafting Polymerization Method.
- Source :
- Polymer Science - Series B; May2020, Vol. 62 Issue 3, p238-244, 7p
- Publication Year :
- 2020
-
Abstract
- In this study, a novel KGM-based superabsorbent polymer KGM-g-poly-(acrylic acid-co-acrylamide-co-N,N'-dimethyl-N-ethylmethacryloxylethylammoniumbromide) (KAAD) was prepared, which was obtained by the free radical grafting solution polymerization of acrylamide (AM), acrylic acid (AA) and N,N'-dimethyl-N-ethylethacryloxylethylammonium bromide (DMAEA-EB) onto konjac glucomannan (KGM) with of potassium persulfate (K<subscript>2</subscript>S<subscript>2</subscript>O<subscript>8</subscript>) as initiator and N,N'-methylenebisacrylamide (MBA) as crosslinker. The groups of AA, AM and DMAEA-EB grafted on KGM were detected by infrared spectroscopy (FTIR). The effects of the reaction conditions (including an initiator dosage, AA and AM mass ratio, and a reaction temperature, etc.) on the grafting degree and grafting efficiency were investigated by a gravimetric method. The maximum grafting degree and grafting efficiency of the obtained graft polymer in the experiment were 71.51 and 89.90%, respectively. The effects of crosslinking agent and GD on water absorption were explored. And all of the experimental data show that the water absorption ratio of the KAAD resin exceeds 527.00 g/g under each optimal reaction conditions. Therefore, KAAD can be widely used as a functional material in pharmaceutics, textiles, construction and other fields due to its excellent superabsorbent properties. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15600904
- Volume :
- 62
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Polymer Science - Series B
- Publication Type :
- Academic Journal
- Accession number :
- 144261923
- Full Text :
- https://doi.org/10.1134/S1560090420030185