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Journal Articles

Dynamic of organic species in organo-clay/polypropyrene composite by quesi-elastic neutron scattering

Fukushima, Yoshiaki*; Yamada, Takeshi*; Tamura, Kenji*; Shibata, Kaoru

Applied Clay Science, 155, p.15 - 19, 2018/04

 Times Cited Count:4 Percentile:31.92(Chemistry, Physical)

Dynamics of a fluoromica (ME100) cation exchanged for dioctadecyl dimethyl ammonium ion (DODA$$^{+}$$)/ polypropylene composite was analyzed by quasi elastic neutron scattering (QENS), besides XRD and DSC. The QENS spectra for the DODA-ME100 at low Q=2.75 nm$$^{-1}$$ were not changed even at temperature higher than 445 K, the melting point of DODA$$^{+}$$. The results suggested the long range ($$>$$ 2 nm) molecular motions in interlayer space are restricted due to the rigid silicate layers and the strong electrostatic interaction between DODA$$^{+}$$ and the ME100. Elastic intensity scan results suggested that a little amount of motion of the polymer chains in the composite was also restricted in the molten state at 445 K. The QENS is expected to be one of the useful tools for studying the composite materials.

Journal Articles

Comparative study on the protection effect in the radiation-induced oxidation of liquid paraffins and polypropylene

Y.S.Soebianto*; *; Katsumura, Yosuke*; Ishigure, Kenkichi *; *; *; *; Kudo, Hisaaki; Seguchi, Tadao

JAERI-Conf 95-003, 0, p.96 - 100, 1995/03

no abstracts in English

Journal Articles

Degradation of polypropylene under gamma irradiation: Protection effect of additives

Y.S.Soebianto*; *; Katsumura, Yosuke*; Ishigure, Kenkichi*; *; Kudo, Hisaaki; Seguchi, Tadao

Polym. Degrad. Stab., 50, p.203 - 210, 1995/00

 Times Cited Count:28 Percentile:77.21(Polymer Science)

no abstracts in English

Journal Articles

Proton irradiation effects on organic polymers

Seguchi, Tadao; Sasuga, Tsuneo; Kawakami, Waichiro; Hagiwara, Miyuki; Kono, Isamu*; Kamitsubo, Hromichi*

Proceedings of 11th International Conference on Cyclotrons and Their Applications, p.669 - 672, 1987/00

Organic polymer films(100 m thickness) of polyethylene, polypropylene, polyethyleneterephtalate, and polyethersulfone were irradiated by protons of 8MeV using a cyclotorn, and their radiation effects were investigated by the changes of mechanical properties.

Journal Articles

Radiation effects of proton beam on polymer films

Kawanishi, Shuichi; Sasuga, Tsuneo; ; ; Seguchi, Tadao; Kono, Isamu*

EIM-86-125, p.49 - 54, 1986/00

no abstracts in English

Journal Articles

Radiation-induced oxidative degradation of isotactic polypropylene

E.A.Hegazy*; Seguchi, Tadao; Arakawa, Kazuo; Machi, Sueo

J.Appl.Polym.Sci., 26, p.1361 - 1372, 1981/00

 Times Cited Count:62 Percentile:93.52(Polymer Science)

no abstracts in English

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