Preparation of starch-graft-acrylic acid/bentonite composite gel

Kaeksi Sekar Arum, Enggar Candra Prastiti, Prida Novarita Trisanti, Sumarno*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


A hydrogel is a hydrophilic polymer with a three-dimensional network that can retain a large amount of water and have swelling behaviour without dissolving in water. A hydrogel can be applied in various fields. Some are for Enhanced Oil Recovery (EOR), water harvesting, and diapers. Regarding its application, the hydrogel needs to have a high water absorption capacity. This research is aimed to prepare hydrogel that has a high absorption capacity by modifying the structure of the polymer, which was done by modifying the crosslinker. The hydrogel was prepared by grafting partially neutralised acrylic acid onto gelatinised starch in a reactor using potassium persulfate as an initiator with the temperature of 60 °C. Then, it was added by N,N'-methylene-bis-acrylamide (MBA) as a crosslinker to create three-dimensional networks. This hydrogel was characterised by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and water absorbency. The result demonstrated that the highest absorption of water with variable concentration of crosslinker was 512.12 g/g.

Original languageEnglish
Title of host publication14th Joint Conference on Chemistry 2019
EditorsFitria Rahmawati, Teguh Endah Saraswati, Khoirina Dwi Nugrahaningtyas, Soerya Dewi Marliyana, Triana Kusumaningsih
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419964
Publication statusPublished - 2 Jun 2020
Event14th Joint Conference on Chemistry 2019, JCC 2019 - Surakarta, Indonesia
Duration: 10 Sept 201911 Sept 2019

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference14th Joint Conference on Chemistry 2019, JCC 2019


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