Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Katakai, Akio; Tamada, Masao; Nagamoto, Hiroyuki*; Miyagawa, Hiroshi*
Nihon Ion Kokan Gakkai-Shi, 16(2), p.122 - 126, 2005/05
A chelating fiber containing an amidoxime group as a chelate-forming group was prepared by radiation-induced cograft polymerization of acrylonitrile and methacrylic acid and subsequent conversion of the produced cyano group into the amidoxime group. The effect of repeated use of monomers for radiation-induced graft copolymerization on the composition of the graft chain and its adsorption capacity for metal ions was determined. The degree of cografting decreased by as low as 10% at the fourth cycle of cografting, compared with an initial degree of cografting of 170%, because the amount of homopolymer formed in cografting was negligibly small at 0.15 g/L of the monomer solution. The repeated use of monomers did not affect the amidoxime group density and the adsorption capacities of zinc and cadmium ions, resulting in the cost reduction of the preparation of the chelating fiber.
Takahashi, Manabu*; Tanaka, Kazuya*; Tamada, Masao; Aoi, Toru*
Kankyo Kogaku Kenkyu Rombunshu, Vol.41, p.229 - 235, 2004/11
Fibrous metal adsorbent having iminodiacetic acid was synthesized by radiation-induced grafting glycidyl methacrylate on nonwoven fabric and subsequent chemical treatment. The degree of grafting calculated by increasing weight after grafting reached 170 % for reaction time of 2h at 40 
C. The adsorption characteristics of ferric and manganese ions were evaluated by using the resulting adsorbent with 2.1 mmol/g-adsorbent function group of iminodiacetic acid. Each distribution coefficient of ferric and manganese ion deceased with increase of another coexist ion. Both ferric and manganese ions were completely removed by the adsorbent column at the space velocity of 1000h
. Adsorption capacities of both ions were reduced to 80% after 5 times reputation of adsorption and desorption.
Yamaki, Tetsuya; Asano, Masaharu; Maekawa, Yasunari; Morita, Yosuke; Suwa, Takeshi; Chen, J.*; Tsubokawa, Norio*; Kobayashi, Kazuhiro*; Kubota, Hitoshi*; Yoshida, Masaru
Radiation Physics and Chemistry, 67(3-4), p.403 - 407, 2003/08
Times Cited Count：76 Percentile：97.02(Chemistry, Physical)no abstracts in English
Basuki, F.*; Seko, Noriaki; Tamada, Masao; Sugo, Takanobu; Kume, Tamikazu
Nihon Ion Kokan Gakkai-Shi, 14(Suppl.), p.209 - 212, 2003/00
Radiation induced graftpolymerization is a sophisticated tool for introducing the aiming functional group into the conventional polymer. Adsorbent having phosphoric acid was directly synthesized by grafting methacrylate monomer having phosphoric acid onto polyethylene nonwoven fabric. Degree of grafting, which was estimated by increment weight after grafting, reached 185 % when the 10 % monomer in the mixture of 10 % methanol and 90 % water was reacted with 200 kGy-irradiated polyethylene nonwoven fabric. The resulting adsorbent revealed that adsorption capacities were 3 mmol/g-adsorbent for Pb and Cd. The removal of these metals could be performed with space velocity of 250 h.
K.Bahari*; Mitomo, Hiroshi*; *; Hasegawa, Shin; Yoshii, Fumio; Makuuchi, Keizo
Die Angewandte Makromolekulare Chemie, 250, p.31 - 44, 1997/00
Times Cited Count：32 Percentile：76.49(Polymer Science)no abstracts in English
Y.S.Soebianto*; ; ;
Angewandte Makromolekulare Chemie, (2483), p.149 - 158, 1987/00
Times Cited Count：8 Percentile：45.54(Polymer Science)no abstracts in English
; Yoshida, Kenzo; ; Araki, Kunio
Radiation Physics and Chemistry, 11, p.327 - 334, 1978/00
no abstracts in English
Sasuga, Tsuneo; ; ; *; Araki, Kunio
Kobunshi Kogaku, 30(341), p.353 - 540, 1973/00
no abstracts in English
