Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Reikichi Iwamoto"'
Autor:
Reikichi Iwamoto
Publikováno v:
Bulletin of the Chemical Society of Japan. 92:1117-1126
In the present paper we have studied interactions of the N and NH of alkylamines with water. We analyzed the property from the infrared and near-infrared absorptions that hydration causes to tribut...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c985245b8e01f89efbfc14d0a3ac19ec
https://doi.org/10.1246/bcsj.20190032
https://doi.org/10.1246/bcsj.20190032
Autor:
Reikichi Iwamoto, Rika Harui
Publikováno v:
Bulletin of the Chemical Society of Japan. 91:1267-1274
The aim of the present study is to investigate how F substitution influences the hydrogen-bonding of the CH to water of an alkane. For this purpose we have comparatively studied the hydrogen bondin...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9492f1162a7b4091dc92c4a68a5d9211
https://doi.org/10.1246/bcsj.20180063
https://doi.org/10.1246/bcsj.20180063
Publikováno v:
Bulletin of the Chemical Society of Japan. 90:527-536
We study the hydrogen-bonding structure of the water in polycarbonate (PC) (OC6H4C(CH3)2C6H4OCO)n by near- and mid-infrared spectroscopy. We extensively analyze the effects of the hydration interac...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99d00b54e6a81a29440d49092b0c585f
https://doi.org/10.1246/bcsj.20160394
https://doi.org/10.1246/bcsj.20160394
Autor:
Hiroshi Kusanagi, Reikichi Iwamoto
Publikováno v:
The Journal of Physical Chemistry A. 119:2885-2894
We have studied the state of the water contained in poly(ethylene terephthalate) (PET), which consists of repeat units of OCC6H4COOCH2CH2O, in variously hydrated states. We first determined the hydration structure of the water therein not only from i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::911f520a55c5485b36b66b21d18efbe1
https://doi.org/10.1021/acs.jpca.5b00385
https://doi.org/10.1021/acs.jpca.5b00385
Autor:
Reikichi Iwamoto
Publikováno v:
The Journal of Physical Chemistry A. 114:7398-7407
Hydration property of amide C=O was investigated from the OH stretching fundamentals and the first combinations of the water in the hydrate, formed in hydrophobic solution of an N,N-dialkyl amide ((CH(3)CH(2))(2)NCO(CH(2))(10)CH(3)) in heptane. The p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::462ffb6b11c762a8f2b8048dc3088691
https://doi.org/10.1021/jp102479t
https://doi.org/10.1021/jp102479t
Autor:
Masahiro Sato, Reikichi Iwamoto
Publikováno v:
The Journal of Physical Chemistry A. 113:13998-14007
In the present paper we characterize the hydration shell around a Li ion, as -SO(3)(-)Li(+), from a series of infrared spectra of the hydrated Li salt in a sample of Nafion. The infrared spectrum significantly changes through prolonged dehydration un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67b89673f9399a14f6283eafbbdab596
https://doi.org/10.1021/jp906934u
https://doi.org/10.1021/jp906934u
Autor:
Reikichi Iwamoto, Hiroshi Kusanagi
Publikováno v:
The Journal of Physical Chemistry A. 113:5310-5316
This paper reports the structure of the hydrate complex of an isolated alcoholic OH, produced in a small amount in hydrophobic solution in heptane. The structure was determined from the changes, caused by hydration, in the infrared and near-infrared
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::724010ea76b3cd0b9169acbaf8735be8
https://doi.org/10.1021/jp8090254
https://doi.org/10.1021/jp8090254
Autor:
Reikichi Iwamoto
Publikováno v:
Applied Spectroscopy. 63:354-362
In the present paper we report that near-infrared spectroscopy is a useful tool for analyzing solutes in solution in common organic solvents. This is because the near-infrared absorptions of the solvent are not so strong as to disturb the separation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a17993364b96d30de44f45430451e3e0
https://doi.org/10.1366/000370209787598942
https://doi.org/10.1366/000370209787598942
Autor:
Toshihiko Matsuda, Reikichi Iwamoto
Publikováno v:
Analytical Chemistry. 79:3455-3461
First, we developed quantitative analytical methods of water in poly(methyl methacrylate) (PMMA) in various hydrated states by utilizing the first combination and OH stretching bands of water at about 5240 and 3630 cm-1, respectively. Next, we invest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7e3c56f04c14fce3d5a1caa7333e6d0
https://doi.org/10.1021/ac0621928
https://doi.org/10.1021/ac0621928
Publikováno v:
Journal of Polymer Science Part B: Polymer Physics. 44:2425-2437
We studied interactions of water with OH groups in poly(ethylene-co-vinyl alcohol) (EVOH) of the ethylene (Et) compositions of 33, 49, 75, and 89% (mol) using near-infrared spectroscopy. OH groups are mostly self-associated and only partly isolated i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::356940f6b986c1741cfacdce99e43c15
https://doi.org/10.1002/polb.20894
https://doi.org/10.1002/polb.20894