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Takahashi, Shuichi*; Yoshida, Masaru; Asano, Masaharu; Notomi, Mitsuo*; Nakagawa,Tsutomu*
Nuclear Instruments and Methods in Physics Research B, 217(3), p.435 - 441, 2004/05
Times Cited Count：15 Percentile：66.75(Instruments & Instrumentation)Various characterization were used to study the effect of heavy ion irradiation on a poly(ethylen terephthalate)(PET) membrane. My study was followed using some dynamic and thermal measurements with the aim to undestand the chemical change in the material by heavy ion irradiation. The anyalyese included DMA, tensile measurement, DSC and micro-FT-IR. The overall structure change in the PET polymer was investigated as a function of the Xe ion fluence in the range from 3
10
to 310
ions/cm
. Based on some mechanical measurements such as the tensile analysis and dynamic test, the heavy ion irradiated PET membranes exhibited a significant change in cross-linking. I believe that the secondary electron induced by collision between the irradiated ion and the constituent atoms of the membrane material form the cross-linking. The polymer chain scission and structure degradations are expected to result at higher ion fluence. Also, a slight change in the structure such as amorphization has been shown by DSC and the micro-FT-IR test.
Norisue,Tomohisa*; Kida, Yusuke*; Masui, Naoki*; Tran-Cong-Miyata, Q.*; Maekawa, Yasunari; Yoshida, Masaru; Shibayama, Mitsuhiro*
Macromolecules, 36(16), p.6202 - 6212, 2003/08
Times Cited Count：80 Percentile：89.47(Polymer Science)The shrinking kinetics of poly(N-isopropylacrylamide) (PNIPA) gels has been studied for two types of PNIPA gels prepared by (i) copolymerization of constituent monomer and cross-linker and (ii) 
-ray irradiation in the PNIPA solutions in order to investigate the role of cross-linking on shrinking kinetics. The shrinking kinetics of the monomer cross-linked gels is quite similar to that of the polymer cross-linked gels. On the other hand, a significant difference was found when the microscopic structure and the dynamics were investigated by small-angle neutron scattering (SANS) and static/dynamic light scattering (SLS/DLS). The degree of built-in inhomogeneities and dynamic fluctuations were evaluated as a function of the cross-linking degree and the gel preparation temperature by intensity decomposition methods for both types of gels. It is concluded that the monomer cross-linked gels have extra built-in inhomogeneities due to the spatial distribution of crosslinks in addition to the frozen concentration fluctuations inherent in polymer gels.
Arifal; Hwang, G.; Onuki, Kaoru
Journal of Membrane Science, 210(1), p.39 - 44, 2002/12
Times Cited Count：20 Percentile：60.02(Engineering, Chemical)no abstracts in English
Yamazaki, Takanori*; Seguchi, Tadao
Journal of Polymer Science, Part A; Polymer Chemistry, 38(18), p.3383 - 3389, 2000/09
no abstracts in English
B.Tang*; ; ; ; Hatada, Motoyoshi
JAERI-M 91-134, 47 Pages, 1991/09
no abstracts in English
Seguchi, Tadao
Radiation Effects on Polymers, p.442 - 456, 1991/00
no abstracts in English
JAERI-M 9856, 131 Pages, 1981/12
no abstracts in English
JAERI-M 9214, 146 Pages, 1980/11
no abstracts in English
-Radiation-induced crosslinking of polystyrene;
Journal of Polymer Science; Polymer Chemistry Edition, 17(8), p.2307 - 2316, 1979/00
no abstracts in English
;
JAERI-M 7949, 111 Pages, 1978/10
no abstracts in English
JAERI-M 7355, 85 Pages, 1977/10
no abstracts in English
Hagiwara, Miyuki; ; ; ;
J.Macromol.Sci.,Part A, 7(8), p.1591 - 1609, 1973/08
no abstracts in English
-irradiation-induced cross-linking of polyethylene; Hosoi, Fumio;
Polym.J., 4(1), p.79 - 86, 1973/01
Times Cited Count：36no abstracts in English
At.Energy Rev., 9(2), p.399 - 422, 1972/00
no abstracts in English
-Radiation-Induced Cross-Linking of Polyethylene; Hosoi, Fumio; Kagiya, Tsutomu*
Polymer Jornal, 3(1), p.108 - 110, 1971/00
Times Cited Count：19no abstracts in English
