Transport properties of comb-type grafted and normal-type N-isopropylacrylamide hydrogel

被引:20
作者
Annaka, M
Sugiyama, M
Kasai, M
Nakahira, T
Matsuura, T
Seki, H
Aoyagi, T
Okano, T
机构
[1] Chiba Univ, Dept Mat Technol, Inage Ku, Chiba 2638522, Japan
[2] Kyushu Univ, Dept Phys, Higashi Ku, Fukuoka 8128581, Japan
[3] Nara Med Univ, Dept Ophthalmol, Kashihara, Nara 6348522, Japan
[4] Chiba Univ, Ctr Chem Anal, Inage Ku, Chiba 2638522, Japan
[5] Kagoshima Univ, Grad Sch Sci & Engn, Kagoshima 8900065, Japan
[6] Tokyo Womens Med Univ, Grad Sch Med, Shinjyuku Ku, Tokyo 1628666, Japan
[7] Tokyo Womens Med Univ, Inst Biomed Engn, Shinjyuku Ku, Tokyo 1628666, Japan
关键词
D O I
10.1021/la025876t
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Transport properties of the comb-type grafted and normal-type N-isopropylacrylamide (NIPA) gel are investigated by gel filtration chromatography and a pulsed field gradient NMR technique with known standard probe molecules in terms of molecular weight cutoff and diffusion coefficient in and through the gels, respectively. The incorporation of NIPA grafted chains into NIPA gel makes the effective mesh size smaller and induces the additional friction between the probe-molecule and gel network. One may control the maximum mesh size of the NIPA gel and thus the effective diffusivity of a probe molecule within a gel by incorporating grafted chains and by adjusting the temperature.
引用
收藏
页码:7377 / 7383
页数:7
相关论文
共 35 条
[1]  
[Anonymous], HYDROGELS MED PHARM
[2]   TEMPERATURE-RESPONSIVE INTERPENETRATING POLYMER NETWORKS CONSTRUCTED WITH POLY(ACRYLIC ACID) AND POLY(N,N-DIMETHYLACRYLAMIDE) [J].
AOKI, T ;
KAWASHIMA, M ;
KATONO, H ;
SANUI, K ;
OGATA, N ;
OKANO, T ;
SAKURAI, Y .
MACROMOLECULES, 1994, 27 (04) :947-952
[3]  
Benoit H., 1966, PURE APPL CHEM, V12, P545
[4]   INVERSE MICROEMULSION POLYMERIZATION OF ACRYLAMIDE - CHARACTERIZATION OF THE WATER-IN-OIL MICROEMULSIONS AND THE FINAL MICROLATEXES [J].
CANDAU, F ;
LEONG, YS ;
POUYET, G ;
CANDAU, S .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1984, 101 (01) :167-183
[5]  
CANDAU F, 1986, COLLOID INTERFACE SC, V104, P398
[6]   DIFFUSION OF BROWNIAN SPHERES IN SEMIDILUTE POLYMER-SOLUTIONS [J].
CUKIER, RI .
MACROMOLECULES, 1984, 17 (02) :252-255
[7]  
de Gennes P.G., 1979, SCALING CONCEPTS POL
[8]  
DONG LC, 1987, ACS SYM SER, V350, P236
[9]  
DUSEK K, 1993, RESPONSIVE GELS VOLU, pR2
[10]   STRUCTURAL INHOMOGENEITIES IN THE RANGE 2.5-2500 A IN POLYACRYLAMIDE GELS [J].
HECHT, AM ;
DUPLESSIX, R ;
GEISSLER, E .
MACROMOLECULES, 1985, 18 (11) :2167-2173