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

来源：

LANGMUIR | 2002年 / 18卷 / 20期

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

页码：7377 / 7383

页数：7

共 35 条

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