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以2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、丙烯酸(AA)、丙烯酰胺(AM)、壳聚糖(CTS)为单体,以N,N,-亚甲基双丙烯酰胺(NMBA)为交联剂,在不加入引发剂和不通入氮气保护的情况下,采用紫外固化法合成出AMPS/AA/AM/CTS四元共聚高吸水性树脂。用正交实验法获得最佳单体配比,并考察了其它因素对树脂吸水率的影响,借助FTIR、TG、偏光显微镜和原子力显微镜对树脂的结构、热稳定性和表面形态进行了分析。实验结果表明:优化条件下得到的高吸水树脂其吸蒸馏水倍数为780g/g,吸0.1mol/LNaCl倍率为55g/g。
(AMPS), acrylic acid (AA), acrylamide (AM) and chitosan (CTS) were used as monomers and N, N’-methylenebispropylene Amide (NMBA) was used as crosslinking agent to synthesize AMPS / AA / AM / CTS quaternary copolymerized superabsorbent polymer by ultraviolet curing without adding initiator or without nitrogen protection. The optimum monomer ratio was obtained by orthogonal experiment. The influence of other factors on the water absorption of the resin was also investigated. The structure, thermal stability and surface morphology of the resin were analyzed by FTIR, TG, polarized light microscope and atomic force microscopy. The experimental results show that the superabsorbent polymer obtained under the optimal conditions has a sucrose content of 780g / g and a desorption rate of 0.1mol / LNaCl of 55g / g.