Salt and pH responsive property of a starch-based amphoteric superabsorbent hydrogel with quaternary ammonium and carboxyl groups (II)

被引：19

作者：

Xu, Shimei ^{[1
]}

Cao, Liqin ^{[1
]}

Wu, Ronglan ^{[1
]}

Wang, Jide ^{[1
]}

机构：

[1] Xinjiang Univ, Coll Chem & Chem Engn, Urumqi 830046, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2006年 / 101卷 / 03期

关键词：

hydrogel; swelling; graft copolymer; kinetic;

D O I：

10.1002/app.23722

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Swelling behaviors of a starch-based amphoteric superabsorbent hydrogel cationic starch/sodium acrylate (CAS/AA) with quaternary ammonium and carboxyl groups were studied by immersion of the gels in various salt and pH solutions. It was found that swelling behaviors are heavily dependent of feed composition. Besides, it is also sensitive to pH, the concentration, and the ionic charge of the saline solution, but not to temperature. A kinetic study disclosed that the water transport mechanism in the CAS/AA was controlled by polymer relaxation. CAS/AA gels showed a good reversibility in the 0.9% NaCl solution after repeating the absorb-dry process for more than 20 times. (c) 2006 Wiley Periodicals, Inc.

引用

页码：1995 / 1999

页数：5

共 25 条

[1] ALI P, 2002, STARCH, V54, P482
[2] Athawale VD, 2001, STARCH-STARKE, V53, P7, DOI 10.1002/1521-379X(200101)53:1<7::AID-STAR7>3.0.CO
[3] 2-Q
[4] Superabsorbent hydrogels for removal of divalent toxic ions. Part I: Synthesis and swelling characterization
Bajpai, SK
Johnson, S
[J]. REACTIVE & FUNCTIONAL POLYMERS, 2005, 62 (03) : 271 - 283
[5] EQUILIBRIUM SWELLING BEHAVIOR OF PH-SENSITIVE HYDROGELS
BRANNONPEPPAS, L
PEPPAS, NA
[J]. CHEMICAL ENGINEERING SCIENCE, 1991, 46 (03) : 715 - 722
[6] Swelling and thermal behaviors of starch-based superabsorbent hydrogel with quaternary ammonium and carboxyl groups
Cao, LQ
Xu, SM
Feng, S
Wang, JD
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 2005, 96 (06) : 2392 - 2398
[7] GELS AS SIZE SELECTIVE EXTRACTION SOLVENTS
CUSSLER, EL
STOKAR, MR
VARBERG, JE
[J]. AICHE JOURNAL, 1984, 30 (04) : 578 - 582
[8] SYNTHESIS AND APPLICATION OF THERMALLY REVERSIBLE HETEROGELS FOR DRUG DELIVERY
DONG, LC
HOFFMAN, AS
[J]. JOURNAL OF CONTROLLED RELEASE, 1990, 13 (01) : 21 - 31
[9] Bending deformation of neutral polymer gels induced by electric fields
Fehér, J
Filipcsei, G
Szalma, J
Zrínyi, M
[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2001, 183 : 505 - 515
[10] Grafting, blending, and biodegradability of cellulose acetate
Guruprasad, KH
Shashidhara, GM
[J]. JOURNAL OF APPLIED POLYMER SCIENCE, 2004, 91 (03) : 1716 - 1723

← 1 2 3 →