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Zhao, Y.; Koizumi, Satoshi
European Polymer Journal, 66, p.437 - 443, 2015/05
Times Cited Count：2 Percentile：6.64(Polymer Science)Zhai, M.; Chen, J.; Hasegawa, Shin; Li, D.; Oku, Hiroyuki*; Maekawa, Yasunari
European Polymer Journal, 45(6), p.1668 - 1673, 2009/06
Times Cited Count：6 Percentile：21.55(Polymer Science)A perfluorinated vinyl ether monomer, 2-bromotetrafluoroethyl trifluorovinyl ether (BrTFF) was grafted into crosslinked poly(tetrafluoroethylene) (cPTFE) films by 
-rays irradiation under different conditions. The irradiation with absorbed doses more than 550 kGy gave the poly(BrTFF) grafted cPTFE membranes with grafting yields of more than 20%. FTIR spectra and SEM-EDS testified that BrTFF was successfully grafted into cPTFE films homogeneously in the film perpendicular direction. TGA analysis of the grafted films indicated that the perfluorinated poly(BrTFF) grafts were phase-separated from the PTFE region due to the crosslinked structure of the cPTFE based film, but the grafted films still had high thermal stability (above 300 
C). The grafted film, a new kind of perfluorinated polymer with bromine active groups and good mechanical properties, is expected to be modified for new applications.
Quynh, T. M.*; Mitomo, Hiroshi*; Nagasawa, Naotsugu; Wada, Yuki; Yoshii, Fumio; Tamada, Masao
European Polymer Journal, 43(5), p.1779 - 1785, 2007/05
Times Cited Count：115 Percentile：94.93(Polymer Science)Crosslinked materials derived from poly(lactide) (PLA) have been produced by radiation modification in the presence of a suitable crosslinker (triallyl isocyanurate: TAIC). The crosslinking structure introduced in PLA films has not only much improved the heat stability but also their mechanical properties. The properties of crosslinked samples are governed by crosslinking density and these improvement seemed to increase with radiation dose. This implied that the three dimensional networks have been introduced in material by radiation and the crosslinking density depended on the structure and length of PLA chains. Biodegradability of PLA was also determined by an enzymatic degradation test and burying in compost at 55 C. Differing with PLLA, PDLA was insignificantly degraded by 
. The degradation rate of PLA in compost was postponed with the introduction of crosslinks.
release of 9-
-D-arabinofuranosyladenine from thermo-responsive copoly(acryloyl-L-proline methyl ester/styrene) gelsMiyajima, Masaharu*; Yoshida, Masaru; Sato, Hiroshi*; Omichi, Hideki; Katakai, Ryoichi*; Higuchi, W. I.*
European Polymer Journal, 30(7), p.827 - 831, 1994/07
Times Cited Count：12 Percentile：50.49(Polymer Science)no abstracts in English
Yoshida, Masaru; Omichi, Hideki; Katakai, Ryoichi*
European Polymer Journal, 28(9), p.1141 - 1145, 1992/00
Times Cited Count：26 Percentile：72.91(Polymer Science)no abstracts in English
*; *; Yoshida, Masaru; Omichi, Hideki; *
European Polymer Journal, 28(7), p.709 - 712, 1992/00
Times Cited Count：4 Percentile：25.35(Polymer Science)no abstracts in English
-hydroxy acids as biodegradable carriersYoshida, Masaru; Asano, Masaharu; Kumakura, Minoru; Katakai, Ryoichi*; Mashimo, Toru*; Yuasa, Hisako*; Yamanaka, Hidetoshi*
European Polymer Journal, 27(3), p.325 - 329, 1991/00
Times Cited Count：14 Percentile：59.1(Polymer Science)no abstracts in English
Yoshida, Masaru; *; Tamada, Masao; Kumakura, Minoru*; Katakai, Ryoichi*
European Polymer Journal, 27(6), p.493 - 499, 1991/00
Times Cited Count：14 Percentile：59.1(Polymer Science)no abstracts in English
Yoshida, Masaru; J.S.Yang*; Kumakura, Minoru*; Hagiwara, Miyuki; Katakai, Ryoichi*
European Polymer Journal, 27(9), p.997 - 1005, 1991/00
Times Cited Count：35 Percentile：81.21(Polymer Science)no abstracts in English
-propiolactone) prepared by radiation-induced solid polymerization in organic solvent system at low temperatureAsano, Masaharu; Yoshida, Masaru; *; Kumakura, Minoru; Mashimo, Toru*; Yuasa, Hisako*; Imai, K.*; Yamanaka, Hidetoshi*
European Polymer Journal, 26(1), p.29 - 33, 1990/00
Times Cited Count：10 Percentile：49.31(Polymer Science)no abstracts in English
Yoshida, Masaru; *; Asano, Masaharu; Kumakura, Minoru
European Polymer Journal, 26(2), p.121 - 125, 1990/00
Times Cited Count：12 Percentile：53.9(Polymer Science)no abstracts in English
*; Yoshida, Masaru; Asano, Masaharu; *; Kumakura, Minoru
European Polymer Journal, 26(4), p.457 - 461, 1990/00
Times Cited Count：28 Percentile：76.24(Polymer Science)no abstracts in English
-caprolactone and 
-valerolactone in the absence of catalysts*; *; Yoshida, Masaru; *; Asano, Masaharu; Kumakura, Minoru
European Polymer Journal, 26(8), p.831 - 836, 1990/00
Times Cited Count：18 Percentile：65.39(Polymer Science)no abstracts in English
*; Yoshida, Masaru; Asano, Masaharu; Kumakura, Minoru; *; *; Mashimo, Toru*; Yuasa, Hisako*; Imai, K.*; Yamanaka, Hidetoshi*
European Polymer Journal, 26(12), p.1273 - 1277, 1990/00
Times Cited Count：34 Percentile：81.07(Polymer Science)no abstracts in English
-amino acid group as side chain of polymerYoshida, Masaru; Asano, Masaharu; Kumakura, Minoru
European Polymer Journal, 25(12), p.1197 - 1202, 1989/12
Times Cited Count：93 Percentile：95.65(Polymer Science)no abstracts in English
*; Yoshida, Masaru; Asano, Masaharu; Kumakura, Minoru
European Polymer Journal, 25(10), p.1019 - 1026, 1989/00
Times Cited Count：177 Percentile：98.67(Polymer Science)no abstracts in English
G.De-Yu*; Yoshida, Masaru; Asano, Masaharu; *; Kaetsu, Isao
European Polymer Journal, 24(11), p.1037 - 1040, 1988/00
no abstracts in English
-valerolactone in the absence of catalysis*; Yoshida, Masaru; Asano, Masaharu; *; Kaetsu, Isao
European Polymer Journal, 24(11), p.1029 - 1036, 1988/00
Times Cited Count：44 Percentile：87.05(Polymer Science)no abstracts in English
