Microphase separation in dehydrated N-isopropylacrylamide/sodium acrylate gel

Masaaki Sugiyama; Shuichiro Kuwajima; Yuji Soejima; Atsushi Nakamura; Nobuyasu Hiramatsu; Takashi Kikukawa; Atsushi Suzuki; Kazuhiro Hara

doi:10.1143/jjap.38.l1360

Microphase separation in dehydrated N-isopropylacrylamide/sodium acrylate gel

Masaaki Sugiyama, Shuichiro Kuwajima, Yuji Soejima, Atsushi Nakamura, Nobuyasu Hiramatsu, Takashi Kikukawa, Atsushi Suzuki, Kazuhiro Hara

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The first small-angle X-ray scattering (SAXS) measurements were carried out in order to examine the mesoscopic structure in the N-isopropylacrylamide/sodium acrylate (NIPA/SA) gel. By the SAXS measurements, a prominent peak was found in the dehydrated gel around 0.026 angstroms^-1. Taking into account of the cross section magnitude against X-ray, the concentration fluctuation of Na⁺ ions was a probable candidate for making contrast for the SAXS profile, which depends on the distribution of the hydrophilic group. Therefore, it was concluded that the mesoscopic structure found in the present study is due to the hydrophilic domains in the dehydrated gel which capture the Na⁺ ions and the remnant water inside the gel.

Original language	English
Pages (from-to)	L1360-L1362
Journal	Unknown Journal
Volume	38
Issue number	12 A
DOIs	https://doi.org/10.1143/jjap.38.l1360
Publication status	Published - 1999

All Science Journal Classification (ASJC) codes

Engineering(all)
Physics and Astronomy(all)

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title = "Microphase separation in dehydrated N-isopropylacrylamide/sodium acrylate gel",

abstract = "The first small-angle X-ray scattering (SAXS) measurements were carried out in order to examine the mesoscopic structure in the N-isopropylacrylamide/sodium acrylate (NIPA/SA) gel. By the SAXS measurements, a prominent peak was found in the dehydrated gel around 0.026 angstroms-1. Taking into account of the cross section magnitude against X-ray, the concentration fluctuation of Na+ ions was a probable candidate for making contrast for the SAXS profile, which depends on the distribution of the hydrophilic group. Therefore, it was concluded that the mesoscopic structure found in the present study is due to the hydrophilic domains in the dehydrated gel which capture the Na+ ions and the remnant water inside the gel.",

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T1 - Microphase separation in dehydrated N-isopropylacrylamide/sodium acrylate gel

AU - Sugiyama, Masaaki

AU - Kuwajima, Shuichiro

AU - Soejima, Yuji

AU - Nakamura, Atsushi

AU - Hiramatsu, Nobuyasu

AU - Kikukawa, Takashi

AU - Suzuki, Atsushi

AU - Hara, Kazuhiro

PY - 1999

Y1 - 1999

N2 - The first small-angle X-ray scattering (SAXS) measurements were carried out in order to examine the mesoscopic structure in the N-isopropylacrylamide/sodium acrylate (NIPA/SA) gel. By the SAXS measurements, a prominent peak was found in the dehydrated gel around 0.026 angstroms-1. Taking into account of the cross section magnitude against X-ray, the concentration fluctuation of Na+ ions was a probable candidate for making contrast for the SAXS profile, which depends on the distribution of the hydrophilic group. Therefore, it was concluded that the mesoscopic structure found in the present study is due to the hydrophilic domains in the dehydrated gel which capture the Na+ ions and the remnant water inside the gel.

AB - The first small-angle X-ray scattering (SAXS) measurements were carried out in order to examine the mesoscopic structure in the N-isopropylacrylamide/sodium acrylate (NIPA/SA) gel. By the SAXS measurements, a prominent peak was found in the dehydrated gel around 0.026 angstroms-1. Taking into account of the cross section magnitude against X-ray, the concentration fluctuation of Na+ ions was a probable candidate for making contrast for the SAXS profile, which depends on the distribution of the hydrophilic group. Therefore, it was concluded that the mesoscopic structure found in the present study is due to the hydrophilic domains in the dehydrated gel which capture the Na+ ions and the remnant water inside the gel.

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JF - Unknown Journal

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Microphase separation in dehydrated N-isopropylacrylamide/sodium acrylate gel

Abstract

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