TY - JOUR
T1 - Synthesis and characterization of composite gels starch-graftacrylic acid/bentonite (St-g-AA/B) using N'Nmethylenebisacrylamide (MBA)
AU - Ayu Laksanawati, Trias
AU - Novarita Trisanti, Prida
AU - Sumarno,
N1 - Publisher Copyright:
© 2019 Published under licence by IOP Publishing Ltd.
PY - 2019/5/3
Y1 - 2019/5/3
N2 - Composite gels are three-dimensional hydrophilic polymer networks that can absorb high amount of water, and eco-friendly. In this study, composite gels starch-graft-acrylic acid/bentonite (St-g-AA/B) was successfully synthesized by graft copolymerization using starch as natural polymer and bentonite. The acrylic acid that neutralized 40% parts with NaOH was used in copolymerization process. The graft copolymerization process uses potassium persulfate (KPS) as a free radical initiator and N,N-Methylenebisacrylamide (MBA) solution as a crosslinker. The synthesis process was conducted at 70°C for two hours under nitrogen atmosphere. Factor influencing of water absorbency such as amount bentonite in the weight and volume ratio were investigated. The results show that composite gels starch-graft-acrylic acid/bentonite (St-g-AA/B) had an optimum bentonite value of 2 %wt acrylic acid with water absorbency obtained were 205.94 g/g and 157 mL/mL. The graft copolymerization reaction was characterized by Fourier Transform Infrared Spectroscopy (FTIR) and morphological structure of product was evidenced by Scanning Electron Microscopy (SEM).
AB - Composite gels are three-dimensional hydrophilic polymer networks that can absorb high amount of water, and eco-friendly. In this study, composite gels starch-graft-acrylic acid/bentonite (St-g-AA/B) was successfully synthesized by graft copolymerization using starch as natural polymer and bentonite. The acrylic acid that neutralized 40% parts with NaOH was used in copolymerization process. The graft copolymerization process uses potassium persulfate (KPS) as a free radical initiator and N,N-Methylenebisacrylamide (MBA) solution as a crosslinker. The synthesis process was conducted at 70°C for two hours under nitrogen atmosphere. Factor influencing of water absorbency such as amount bentonite in the weight and volume ratio were investigated. The results show that composite gels starch-graft-acrylic acid/bentonite (St-g-AA/B) had an optimum bentonite value of 2 %wt acrylic acid with water absorbency obtained were 205.94 g/g and 157 mL/mL. The graft copolymerization reaction was characterized by Fourier Transform Infrared Spectroscopy (FTIR) and morphological structure of product was evidenced by Scanning Electron Microscopy (SEM).
KW - Bentonite
KW - Composite gels
KW - Graft copolymerization
KW - Starch
KW - Water absorbency
UR - http://www.scopus.com/inward/record.url?scp=85065614022&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/509/1/012150
DO - 10.1088/1757-899X/509/1/012150
M3 - Conference article
AN - SCOPUS:85065614022
SN - 1757-8981
VL - 509
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012150
T2 - 13th Joint Conference on Chemistry, JCC 2018
Y2 - 7 September 2018 through 8 September 2018
ER -