Study on structure of water in membranes of PMEA and PHEMA by 2H-NMR

Hiroyuki Ishida; Yuko Miwa; Akira Mochizuki; Masaru Tanaka

Study on structure of water in membranes of PMEA and PHEMA by ²H-NMR

Hiroyuki Ishida, Yuko Miwa, Akira Mochizuki, Masaru Tanaka

Research output: Contribution to conference › Paper › peer-review

Abstract

The states of water in membranes of PMEA and PHEMA were studied with solution ²H-NMR method. The membranes were prepared by spin-coating on PET film. In order to investigate the change in the behavior of water with time after adding of H₂O in membranes of PMEA and PHEMA, ²H-NMR measurements were carried out. From the results of the time dependence spectra and spin-lattice relaxation time T₁, the followings were concluded. The mobility of water molecule in the PMEA membrane after H₂O addition was higher than that in the PHEMA membrane, while exchange rates of the water between inside and outside of the PMEA membrane were slower than those of the PHEMA membrane. The state of water structure in the PMEA membrane is more stable than that in the PHEMA membrane.

Original language	English
Pages	4375-4376
Number of pages	2
Publication status	Published - Dec 1 2006
Externally published	Yes
Event	55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan Duration: Sep 20 2006 → Sep 22 2006

Other

Other	55th Society of Polymer Science Japan Symposium on Macromolecules
Country	Japan
City	Toyama
Period	9/20/06 → 9/22/06

All Science Journal Classification (ASJC) codes

Engineering(all)

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title = "Study on structure of water in membranes of PMEA and PHEMA by 2H-NMR",

abstract = "The states of water in membranes of PMEA and PHEMA were studied with solution 2H-NMR method. The membranes were prepared by spin-coating on PET film. In order to investigate the change in the behavior of water with time after adding of H2O in membranes of PMEA and PHEMA, 2H-NMR measurements were carried out. From the results of the time dependence spectra and spin-lattice relaxation time T1, the followings were concluded. The mobility of water molecule in the PMEA membrane after H2O addition was higher than that in the PHEMA membrane, while exchange rates of the water between inside and outside of the PMEA membrane were slower than those of the PHEMA membrane. The state of water structure in the PMEA membrane is more stable than that in the PHEMA membrane.",

author = "Hiroyuki Ishida and Yuko Miwa and Akira Mochizuki and Masaru Tanaka",

year = "2006",

month = dec,

day = "1",

language = "English",

pages = "4375--4376",

note = "55th Society of Polymer Science Japan Symposium on Macromolecules ; Conference date: 20-09-2006 Through 22-09-2006",

}

TY - CONF

T1 - Study on structure of water in membranes of PMEA and PHEMA by 2H-NMR

AU - Ishida, Hiroyuki

AU - Miwa, Yuko

AU - Mochizuki, Akira

AU - Tanaka, Masaru

PY - 2006/12/1

Y1 - 2006/12/1

N2 - The states of water in membranes of PMEA and PHEMA were studied with solution 2H-NMR method. The membranes were prepared by spin-coating on PET film. In order to investigate the change in the behavior of water with time after adding of H2O in membranes of PMEA and PHEMA, 2H-NMR measurements were carried out. From the results of the time dependence spectra and spin-lattice relaxation time T1, the followings were concluded. The mobility of water molecule in the PMEA membrane after H2O addition was higher than that in the PHEMA membrane, while exchange rates of the water between inside and outside of the PMEA membrane were slower than those of the PHEMA membrane. The state of water structure in the PMEA membrane is more stable than that in the PHEMA membrane.

AB - The states of water in membranes of PMEA and PHEMA were studied with solution 2H-NMR method. The membranes were prepared by spin-coating on PET film. In order to investigate the change in the behavior of water with time after adding of H2O in membranes of PMEA and PHEMA, 2H-NMR measurements were carried out. From the results of the time dependence spectra and spin-lattice relaxation time T1, the followings were concluded. The mobility of water molecule in the PMEA membrane after H2O addition was higher than that in the PHEMA membrane, while exchange rates of the water between inside and outside of the PMEA membrane were slower than those of the PHEMA membrane. The state of water structure in the PMEA membrane is more stable than that in the PHEMA membrane.

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SP - 4375

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T2 - 55th Society of Polymer Science Japan Symposium on Macromolecules

Y2 - 20 September 2006 through 22 September 2006

ER -