caa a22 4500 445385065 CHVBK 20180317143029.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10924-011-0340-2 doi (NATIONALLICENCE)springer-10.1007/s10924-011-0340-2 Synthesis and Properties of N -Maleyl Chitosan-Cross-Linked Poly(Acrylic Acid-co-Acrylamide) Superabsorbents [Elektronische Daten] [Yueqin Yu, Lingxiu Liu, Yanyan Kong, Erchi Zhang, Yanping Liu] A high-swelling superabsorbent was synthesized with biodegradable N-maleyl chitosan as cross-linker, acrylic acid (AA) and acrylamide (AM) as the monomers, ammonium peroxodisulfate-sodium bisulfite (NaHSO3) as redox initiation system, by means of aqueous solution polymerization. The best reaction condition was based on the orthogonal experiment design. The optimal conditions on distilled water absorbency and on 0.9 wt% NaCl solution absorbency were monomer concentration 20 wt%, mole ratio of AA to (AA+AM) 60%, the neutralization degree of AA 40%, cross-linker concentration 2% and monomer concentration 25 wt%, mole ratio of AA to (AA+AM) 60%, neutralization degree of AA 50% and cross-linker concentration 1%, respectively. Factors influencing the water absorbency of superabsorbent also were investigated, by single factor experiment method. The absorbency of superabsorbents in distilled water and 0.9 wt% NaCl solution increased and then decreased with the increasing of monomer concentration, mole ratio of AA to (AA+AM) and degree of neutralization of AA. With the increasing of cross-linker concentration, the absorbency in distilled water increased and then decreased, but it decreased all the time in 0.9 wt% NaCl solution. In enzymatic degradation tests, the weight loss of superabsorbent was related to the content of cross-linker. Springer Science+Business Media, LLC, 2011 N -maleyl chitosan nationallicence Acrylamide nationallicence Superabsorbent nationallicence Orthogonal experiment nationallicence Water absorbency nationallicence Yu Yueqin State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut Liu Lingxiu State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut Kong Yanyan State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut Zhang Erchi State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut Liu Yanping State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/4(2011-12-01), 926-934 1566-2543 19:4<926 2011 19 10924 https://doi.org/10.1007/s10924-011-0340-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10924-011-0340-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yu Yueqin State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut NATIONALLICENCE 700 1- Liu Lingxiu State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut NATIONALLICENCE 700 1- Kong Yanyan State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut NATIONALLICENCE 700 1- Zhang Erchi State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut NATIONALLICENCE 700 1- Liu Yanping State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 266042, Qingdao, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Polymers and the Environment Springer US; http://www.springer-ny.com 19/4(2011-12-01), 926-934 1566-2543 19:4<926 2011 19 10924 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer