TY - JOUR
T1 - Radiation synthesis and characterization of super-absorbing hydrogel from natural polymers and vinyl monomer
AU - Hong, Tran Thu
AU - Okabe, Hirotaka
AU - Hidaka, Yoshiki
AU - Hara, Kazuhiro
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers JP21656239 , JP24360398 . The SEM observation was measured at the Center of Advanced Instrumental Analysis, Kyushu University.
PY - 2018/11
Y1 - 2018/11
N2 - This article exploits a new approach for synthesis of polysaccharide-based grafted sodium styrene sulfonate (SSS) super absorbent hydrogels (SAHs) in aqueous solution by γ-radiation under ambient conditions. Important optimal conditions for preparation of hydrogels with the best swelling ratio, such as gamma irradiation dose and the ratio of feed composition have been discussed. Characterization techniques such as the SEM/EDS, FTIR and DSC were used in describing the newly prepared hydrogels. The FTIR gave characteristic peaks for -SO3Na group at 1042 and 988 cm−1, showing successful grafting of SSS onto the polysaccharide base material. The dependence of swelling behaviors in various pH solutions and salts solutions were investigated in detail. The prepared hybrid hydrogel showed most optimum swelling capacity at neutral pH whereas equilibrium swelling of SAHs was achieved within 5 h. The swelling of SAHs influenced obviously to metal ion removal percentage in solution.
AB - This article exploits a new approach for synthesis of polysaccharide-based grafted sodium styrene sulfonate (SSS) super absorbent hydrogels (SAHs) in aqueous solution by γ-radiation under ambient conditions. Important optimal conditions for preparation of hydrogels with the best swelling ratio, such as gamma irradiation dose and the ratio of feed composition have been discussed. Characterization techniques such as the SEM/EDS, FTIR and DSC were used in describing the newly prepared hydrogels. The FTIR gave characteristic peaks for -SO3Na group at 1042 and 988 cm−1, showing successful grafting of SSS onto the polysaccharide base material. The dependence of swelling behaviors in various pH solutions and salts solutions were investigated in detail. The prepared hybrid hydrogel showed most optimum swelling capacity at neutral pH whereas equilibrium swelling of SAHs was achieved within 5 h. The swelling of SAHs influenced obviously to metal ion removal percentage in solution.
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U2 - 10.1016/j.envpol.2018.07.129
DO - 10.1016/j.envpol.2018.07.129
M3 - Article
C2 - 30142561
AN - SCOPUS:85053036553
SN - 0269-7491
VL - 242
SP - 1458
EP - 1466
JO - Environmental Pollution
JF - Environmental Pollution
ER -