Bhuyan Md Murshed, Jeong Jae-Ho
Research Institute of Environment for Sustainability, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka 819-0395, Japan.
Thermal-Fluid Energy Machine Lab., Department of Mechanical Engineering, Gachon University, 1342, Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea.
Gels. 2023 Feb 16;9(2):159. doi: 10.3390/gels9020159.
The gamma radiation technique is simple and time-saving for the synthesis of pure hydrogels. The present work focuses on synthesizing and characterizing Diallyldimethylammonium Chloride-Acrylic acid-(3-Acrylamidopropyl) trimethylammonium Chloride (DADMAC-AAc-APTAC) superabsorbent hydrogels. The hydrogels were synthesized by applying gamma radiation of different doses (2 kGy to 30 kGy) to two different compositions of monomers. The equilibrium swelling was found to be 33483.48% of dried gel for a 1:0.5:1 composition ratio of monomers at a 2 kGy radiation dose. Therefore, on the basis of equilibrium swelling, 2 kGy is the optimum radiation dose for synthesizing the hydrogel. Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR) spectroscopy, and X-ray diffraction (XRD) characterization techniques were used to analyze and confirm the structure of the hydrogel. Thermogravimetric analysis (TGA) and Scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS) clearly showed the thermal stability and surface morphology of the gel. Therefore, it can be concluded that hydrogels can be used in metal adsorption, drug delivery, and other fields of study.
伽马辐射技术用于合成纯水凝胶既简单又省时。目前的工作重点是合成和表征二烯丙基二甲基氯化铵-丙烯酸-(3-丙烯酰胺基丙基)三甲基氯化铵（DADMAC-AAc-APTAC）高吸水性水凝胶。通过对两种不同单体组成施加不同剂量（2千戈瑞至30千戈瑞）的伽马辐射来合成水凝胶。在2千戈瑞辐射剂量下，对于单体组成比为1:0.5:1的情况，发现平衡溶胀为干凝胶的33483.48%。因此，基于平衡溶胀，2千戈瑞是合成水凝胶的最佳辐射剂量。使用傅里叶变换红外（FTIR）、核磁共振（NMR）光谱和X射线衍射（XRD）表征技术来分析和确认水凝胶的结构。热重分析（TGA）和配备能谱仪（EDS）的扫描电子显微镜（SEM）清楚地显示了凝胶的热稳定性和表面形态。因此，可以得出结论，水凝胶可用于金属吸附、药物递送及其他研究领域。
