Preparation of a starch-graft-acrylamide/kaolinite superabsorbent composite and the influence of the hydrophilic group on its water absorbency

被引：49
作者：
Wu, JH [1 ]
Wei, YL [1 ]
Lin, JM [1 ]
Lin, SB [1 ]
机构：
[1] Huaqiao Univ, Inst Mat Phys Chem, Fujian 362011, Peoples R China
来源：
POLYMER INTERNATIONAL | 2003年 / 52卷 / 12期
关键词：
copolymerization; cooperative effect; hydrophilic polymer; starch-graft-acrylamide/kaolinite; superabsorbent composite;
D O I：
10.1002/pi.1303
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A novel starch-graft-acrylamide/kaolinite superabsorbent composite with water absorbency 4000 times (g g(sample)(-1)) was synthesized by a graft copolymerization reaction among acrylamide, potato starch and kaolinite ultrafine powder, followed by saponification with NaOH. The influence of the hydrophilic group on water absorbency was investigated. It was found that the combined absorbent effect of -CONH2, -COONa and -COOH groups was superior to that of a single group, and the composite with the molar ratio of 8:63 for the -CONH2, -COONa and -COOH groups exhibits the highest water-absorbent ability. (C) 2003 Society of Chemical Industry.
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页码：1909 / 1912
页数：4
相关论文
共 13 条
[1]  
FANG GC, 1986, J WUHAN U, P122
[2]  
Hebeish A, 1998, J APPL POLYM SCI, V68, P1709, DOI 10.1002/(SICI)1097-4628(19980606)68:10<1709::AID-APP21>3.0.CO
[3]  
2-Q
[4]  
Lin JM, 2001, MACROMOL RAPID COMM, V22, P422, DOI 10.1002/1521-3927(20010301)22:6<422::AID-MARC422>3.0.CO
[5]  
2-R
[6]   PREPARATION OF A POLYELECTROLYTE COMPLEX GEL FROM CHITOSAN AND KAPPA-CARRAGEENAN AND ITS PH-SENSITIVE SWELLING [J].
SAKIYAMA, T ;
CHU, CH ;
FUJII, T ;
YANO, T .
JOURNAL OF APPLIED POLYMER SCIENCE, 1993, 50 (11) :2021-2025
[7]   SWELLING EQUILIBRIA AND VOLUME PHASE-TRANSITION OF PARTIALLY NEUTRALIZED POLY(ACRYLIC ACID) GELS [J].
TONG, Z ;
LIU, XX .
EUROPEAN POLYMER JOURNAL, 1993, 29 (05) :705-709
[8]  
US DEP AGR, 1961, Patent No. 3981100
[9]  
WEN F, 1997, J APPL POLYM SCI, V64, P1701
[10]  
Wu JH, 2000, MACROMOL RAPID COMM, V21, P1032, DOI 10.1002/1521-3927(20001001)21:15<1032::AID-MARC1032>3.0.CO
12