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化学工业与工程
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��ѧ��ҵ�빤�� 2007, Vol. 24 Issue (3) :240-244    DOI:
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Performance of Semi-IPN Hydrogels from Polyacrylamide Grafted Chitosan
YU Mei~(1,2),ZHANG Chao~(2)(1.College of Pharmaceuticals and Biotechnology,Tianjin University,Tianjin 300072,China;2.Tianjin Biomedical Materials Key Laboratory,Institute of Biomedical Engineering,CAMS and PUMC,Tianjin 300192,China)
(1,2),ZHANG Chao~(2)(1.College of Pharmaceuticals and Biotechnology,Tianjin University,Tianjin 300072,China;2.Tianjin Biomedical Materials Key Laboratory,Institute of Biomedical Engineering,CAMS and PUMC,Tianjin 300192,China
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ժҪ �Թ������(KPS)Ϊ���ɻ�������,�ڿǾ���(CS)�Ͻ�֦�����˾۱�ϩ����(PAAm)�����Ǽ׻�˫��ϩ����(MBA)���ȩΪ������,���о�����������,�罻����Ũ�Ⱥ͵�����ʶ�ˮ��������������Ӱ�졣�������ˮ������������ǿ�������ԡ�pH�����Ժ��¶������ԡ����ֿ������������Ӧ�������ء�������,ʹ��������ˮ����������Ϊ������Ʒ����,����ҩ�����塣
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Abstract�� Graft copolymerization of acrylamide(AAm) onto chitosan(CS) was carried out by using potassium persulfate(KPS) as a free radical initiator.And methylenebisacrylamide(MBA) or formaldehyde was used as a crosslinker.The effect of reaction variables,such as crosslinker concentration and CS/AAm ratio on the water absorbency capacity were investigated.The hydrogels exhibited reversible ion strength-,pH-and temperature-responsive characteristics.The reversibility and on-off switching properties of the hydrogels make the intelligent polymers as good candidates for potential carriers for bioactive agents,e.g.drugs.
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Received 2007-05-15; published 2007-05-15
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��õ;�ų�;.�Ǿ��ǽ�֦PAAm�뻥����������������[J].  ��ѧ��ҵ�빤��, 2007,24(3): 240-244
YU Mei~.Performance of Semi-IPN Hydrogels from Polyacrylamide Grafted Chitosan[J].  Chemcial Industry and Engineering, 2007,24(3): 240-244
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