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kenji ito
kenji ito
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Year
Extension of the Equation for the Annihilation Lifetime of ortho-Positronium at a Cavity Larger than 1 nm in Radius
K Ito, H Nakanishi, Y Ujihira
The Journal of Physical Chemistry B 103 (21), 4555-4558, 1999
2081999
Free volume and permeabilities of O2 and H2 in Nafion membranes for polymer electrolyte fuel cells
HFM Mohamed, K Ito, Y Kobayashi, N Takimoto, Y Takeoka, A Ohira
Polymer 49 (13-14), 3091-3097, 2008
1282008
Oxygen permeability and free volume hole size in ethylene–vinyl alcohol copolymer film: temperature and humidity dependence
M Muramatsu, M Okura, K Kuboyama, T Ougizawa, T Yamamoto, ...
Radiation Physics and Chemistry 68 (3-4), 561-564, 2003
1222003
Multiple point adsorption in a heteropolymer gel and the Tanaka approach to imprinting: experiment and theory
K Ito, J Chuang, C Alvarez-Lorenzo, T Watanabe, N Ando, AY Grosberg
Progress in polymer science 28 (10), 1489-1515, 2003
1052003
Preparation of BTESE-derived organosilica membranes for catalytic membrane reactors of methylcyclohexane dehydrogenation
T Niimi, H Nagasawa, M Kanezashi, T Yoshioka, K Ito, T Tsuru
Journal of membrane science 455, 375-383, 2014
1032014
Structural characterization of thin-film polyamide reverse osmosis membranes
J Albo, H Hagiwara, H Yanagishita, K Ito, T Tsuru
Industrial & Engineering Chemistry Research 53 (4), 1442-1451, 2014
902014
Positronium chemistry in porous materials
Y Kobayashi, K Ito, T Oka, K Hirata
Radiation Physics and Chemistry 76 (2), 224-230, 2007
832007
Correlation study between free-volume holes and molecular separations of composite membranes for reverse osmosis processes by means of variable-energy positron annihilation …
Z Chen, K Ito, H Yanagishita, N Oshima, R Suzuki, Y Kobayashi
The Journal of Physical Chemistry C 115 (37), 18055-18060, 2011
802011
Frustrations in polymer conformation in gels and their minimization through molecular imprinting
T Enoki, K Tanaka, T Watanabe, T Oya, T Sakiyama, Y Takeoka, K Ito, ...
Physical review letters 85 (23), 5000, 2000
802000
Positronium formed by recombination of positron-electron pairs in polymers
K Sato, D Shanai, Y Hotani, T Ougizawa, K Ito, K Hirata, Y Kobayashi
Physical review letters 96 (22), 228302, 2006
752006
New insights into the microstructure-separation properties of organosilica membranes with ethane, ethylene, and acetylene bridges
R Xu, SM Ibrahim, M Kanezashi, T Yoshioka, K Ito, J Ohshita, T Tsuru
ACS applied materials & interfaces 6 (12), 9357-9364, 2014
742014
Intrinsic momentum distributions of positron and positronium annihilation in polymers
K Sato, K Ito, K Hirata, RS Yu, Y Kobayashi
Physical Review B 71 (1), 012201, 2005
702005
Probing the elemental environment around the free volume in polymers with positron annihilation age− momentum correlation spectroscopy
K Sato, H Murakami, K Ito, K Hirata, Y Kobayashi
Macromolecules 42 (13), 4853-4857, 2009
602009
Nanoporous structure of sputter-deposited silicon oxide films characterized by positronium annihilation spectroscopy
Y Kobayashi, W Zheng, TB Chang, K Hirata, R Suzuki, T Ohdaira, K Ito
Journal of applied physics 91 (3), 1704-1706, 2002
602002
Gas-phase selective adsorption on functional monolayers immobilized on a highly sensitive quartz-crystal microbalance
Y Okahata, K Matsuura, K Ito, Y Ebara
Langmuir 12 (4), 1023-1026, 1996
551996
Interlaboratory comparison of positron annihilation lifetime measurements for synthetic fused silica and polycarbonate
K Ito, T Oka, Y Kobayashi, Y Shirai, K Wada, M Matsumoto, M Fujinami, ...
Journal of Applied Physics 104 (2), 026102, 2008
542008
Correlation Study between Oxygen Permeability and Free Volume of Ethylene− Vinyl Alcohol Copolymer through Positronium Lifetime Measurement
K Ito, Y Saito, T Yamamoto, Y Ujihira, K Nomura
Macromolecules 34 (18), 6153-6155, 2001
522001
Positronium time-of-flight measurements of porous low- films
RS Yu, T Ohdaira, R Suzuki, K Ito, K Hirata, K Sato, Y Kobayashi, J Xu
Applied physics letters 83 (24), 4966-4968, 2003
422003
Experimental and theoretical study on small gas permeation properties through amorphous silica membranes fabricated at different temperatures
M Kanezashi, T Sasaki, H Tawarayama, H Nagasawa, T Yoshioka, K Ito, ...
The Journal of Physical Chemistry C 118 (35), 20323-20331, 2014
412014
High sensitivity of positron annihilation to thermal oxidation of polyethylene
K Ito, Y Kobayashi, A Nanasawa
Applied physics letters 82 (4), 654-656, 2003
392003
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