| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7782768 | Carbohydrate Polymers | 2018 | 9 Pages |
Abstract
A new superabsorbent with maximum water absorption capacity of â¼1250â¯g/g is prepared by hydrothermal synthesis from sustainable and biodegradable resources such as chitosan, citric acid and urea (denoted as 'CHCAUR'). CHCAUR is characterized extensively by various analytical techniques such as PXRD, SSNMR, FTIR, and TGA. Pure and saline water absorption study showed that CHCAUR could be a better adsorbent compared to the super absorbent polymer (SAP) used in commercial diaper material. The mechanism of water absorption is shown to arise out of a combination of electrostatic attraction of water to the ionic crosslinks and the presence of macropores as well as undulated surface due to the formation of nanofibrous bundles. When applied to soil CHCAUR was found to decrease water evaporation rate significantly.
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Authors
Abathodharanan Narayanan, Ravishankar Kartik, Elanchezhian Sangeetha, Raghavachari Dhamodharan,