journal article·2002-10-01

Transport Properties of Comb-Type Grafted and Normal-Type N-Isopropylacrylamide Hydrogel

Masahiko Annaka, Masaaki Sugiyama, Masaki Kasai, Takayuki Nakahira, Toyoaki Matsuura, Hiroko Seki, Takao Aoyagi, Teruo Okano

Langmuir· Volume 18· Issue 20
Publisher page

Abstract

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.
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Research context

OpenAlex topics: Hydrogels: synthesis, properties, applications · Advanced Polymer Synthesis and Characterization · Polymer Surface Interaction Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Technology, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-shi, Chiba 263-8522, Japan; Department of Physics, Kyushu University, 6-10-1, Hakozaki, Higashi-ku, Fukuoka-shi, Fukuoka 812-8581, Japan; Department of Ophthalmology, Nara Medical University, 840, Shijyo-cho, Kashihara-shi, Nara 634-8522, Japan; Chemical Analysis Center, Chiba University, 1−33, Yayoi-cho, Inage-ku, Chiba-shi, Chiba 263-8522, Japan; Graduate School of Science and Engineering, Kagoshima University,...

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