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Radical polymerization of 2,3-dimethyl-1,3-butadiene in coordination nanochannels

Takashi Uemura, Ryo Nakanishi, Shuto Mochizuki, Yasujiro Murata, Susumu Kitagawa
2015 Chemical Communications  
Radical polymerization of unpolymerizable sterically hindered butadiene was successfully performed in the nanochannels of porous coordination polymers.
doi:10.1039/c5cc01933h pmid:25996821 fatcat:eiucknz6v5dizcfacqxzr3iq6e

Sequence-regulated copolymerization based on periodic covalent positioning of monomers along one-dimensional nanochannels

Shuto Mochizuki, Naoki Ogiwara, Masayoshi Takayanagi, Masataka Nagaoka, Susumu Kitagawa, Takashi Uemura
2018 Nature Communications  
The design of monomer sequences in polymers has been a challenging research subject, especially in making vinyl copolymers by free-radical polymerization. Here, we report a strategy to obtain sequence-regulated vinyl copolymers, utilizing the periodic structure of a porous coordination polymer (PCP) as a template. Mixing of Cu 2+ ion and styrene-3,5dicarboxylic acid (S) produces a PCP, [Cu(styrene-3,5-dicarboxylate)] n , with the styryl groups periodically immobilized along the one-dimensional
more » ... hannels. After the introduction of acrylonitrile (A) into the host PCP, radical copolymerization between A and the immobilized S is performed inside the channel, followed by decomposing the PCP to isolate the resulting copolymer. The predominant repetitive SAAA sequence in the copolymer is confirmed by monomer composition, NMR spectroscopy and theoretical calculations. Copolymerization using methyl vinyl ketone also provides the same type of sequence-regulated copolymer, showing that this methodology has a versatility to control the copolymer sequence via transcription of PCP periodicity at the molecular level.
doi:10.1038/s41467-017-02736-1 pmid:29362404 pmcid:PMC5780473 fatcat:uxfjlrdaobabheei7oct24khda

An improvement of nonlinear dispersive multi-level wave models and their application to quasi-3-dimensional problem
非線形分散多層波動モデルの改良と準3次元波動場への適用

Susumu KANAYAMA, Hitoshi TANAKA, Nobuo SHUTO
2000 Doboku Gakkai Ronbunshu  
AN IMPROVEMENT OF NONLINEAR DISPERSIVE MULTI-LEVEL WAVE MODELS AND THEIR APPLICATION TO QUASI-3-DIMENSIONAL PROBLEM Susumu KANAYAMA, Hitoshi TANAKA and Nobuo SHUTO Two new versions of the multi-level models  ... 
doi:10.2208/jscej.2000.642_77 fatcat:h2haynptrrhkplxqpi7irrcugi

272. A Technic for Stereotactic Radiation Therapy Using Linear Accelerator
272. リニアックによる定位脳照射技術 : 固定具, 治療計画法の検討(治療-3 ラジオサージェリー 照射技術)

Shoichi Katsuta, Hisataka Hayashi, Moriaki Shuto, Akihiko Asaga, Susumu Hoshino, Tadatoshi Shimano
1992 Japanese Journal of Radiological Technology  
国 立 が ん セ ン タ ー O 勝 田 昭 一 CShelchi Kats眠ta) 星 野 進 ( SUSUPtU Eo3hlne) 林 久 貴 周 東 森 昭 浅 賀 昭彦 ( R 置 sataka Hsyashi ) { 恥 riaki Shuto ) ( Akihiko Aeaga} 嶋 野 忠 俊 ( TedaLosh正 Shlmane》 [ 目 的 ] 頭 部 の 悪 性腫瘍 に 対  ... 
doi:10.6009/jjrt.kj00003500668 fatcat:wfzj7dguqbghvnpprzh3hbulue

Past, Present, and Future of Ergonomics-Articles in Conjunction with the Symposium Commemorating the 50th Anniversary of JES
人間工学の過去・現在・未来(JES50周年記念シンポジウム連動企画)

Kazuo AOKI, Susumu SAITO, Takeshi EBARA, Yuki SHUTO, Mieko OHSUGA
2014 The Japanese Journal of Ergonomics  
doi:10.5100/jje.50.326 fatcat:nx6434h4ijh2dm6fserh4utmea

Influence of Previous Interferon Therapy on Recurrence after Resection of Hepatitis C Virus-related Hepatocellular Carcinoma

Shoji Kubo, Shuhei Nishiguchi, Kazuhiro Hirohashi, Hiromu Tanaka, Tadashi Tsukamoto, Taichi Shuto, Shigekazu Takemura, Takatsugu Yamamoto, Takashi Ikebe, Kenichi Wakasa, Susumu Shiomi, Hiroaki Kinoshita
2001 Japanese Journal of Cancer Research  
Interferon (IFN) therapy decreases the incidence of hepatocellular carcinoma (HCC) in patients with hepatitis C virus (HCV). One hundred and fifty-nine consecutive patients who underwent liver resection for HCV-related HCC were studied. In 17 (group 1) of the 159 patients, HCC was detected during or after IFN therapy. The incidences of recurrence after surgery in the group 1 patients and the other 142 patients (group 2) were compared. Eight patients had a complete response to IFN, 4 had a
more » ... l response, and 5 had no response. The proportion of patients without HCV viremia was significantly higher in the group 1 patients (P < < < <0.0001). The tumor-free survival rate was significantly higher in the group 1 patients (P = = = =0.0010). By multivariate analysis of various risk factors for recurrence, no previous IFN was a significant independent risk factor for recurrence (risk ratio = = = =6.336; 95%CI, 1.512-26.50). The patients with HCC who underwent IFN therapy previously are good candidates for liver resection because recurrence after the operation was rarely observed.
doi:10.1111/j.1349-7006.2001.tb01048.x pmid:11173545 pmcid:PMC5926579 fatcat:tjhyws6nz5fcdeofhy32zda2k4

加工・耐熱鋼

Kiyohiko KIZUKI, Hachiro KOBAYAKAWA, Takuo SHIRAISHI, Kohichi AOKI, Isao KIMURA, Akinori ITOH, Kuniichi TAKEMOTO, Etsuro SHUTO, Kazuo TAMURA, Toskimi YAMANE, Fujio TSUKAMOTO, Tadashi KAWASAKI (+30 others)
1961 Tetsu to hagane  
doi:10.2355/tetsutohagane1955.47.10_1471 fatcat:wcbuxluzgbfplowgskh6p6yfoe

加工・耐熱鋼

Kiyohiko KIZUKI, Hachiro KOBAYAKAWA, Takuo SHIRAISHI, Kohichi AOKI, Isao KIMURA, Akinori ITOH, Kuniichi TAKEMOTO, Etsuro SHUTO, Kazuo TAMURA, Toskimi YAMANE, Fujio TSUKAMOTO, Tadashi KAWASAKI (+30 others)
1961 Tetsu to hagane  
doi:10.2355/tetsutohagane1955.47.10_1462 fatcat:7kdosswabndffmwsl5hnwuxlsm

加工・耐熱鋼

Kiyohiko KIZUKI, Hachiro KOBAYAKAWA, Takuo SHIRAISHI, Kohichi AOKI, Isao KIMURA, Akinori ITOH, Kuniichi TAKEMOTO, Etsuro SHUTO, Kazuo TAMURA, Toskimi YAMANE, Fujio TSUKAMOTO, Tadashi KAWASAKI (+30 others)
1961 Tetsu to hagane  
Isao TANABE,Koichi OKU and Susumu UOTANI  ... 
doi:10.2355/tetsutohagane1955.47.10_1481 fatcat:wgqrvsppofgllpv7adxzdzgyeq

加工

Kazutomo KITAGAWA, Syujiro ONO, Osamu MIKUNI, Chikara SAITO, Keiichi SUZUKI, Junichiro YOURA, Yoichi KITAMURA, Nobuyuki TSUTSUI, Tsuneo INUI, Takeshi NISHIMURA, Takashi HADA, Makoto KATO (+27 others)
1964 Tetsu to hagane  
doi:10.2355/tetsutohagane1955.50.12_2091 fatcat:q5jfnznz2rb7lexcauhyw4tgea

加工

Kazutomo KITAGAWA, Syujiro ONO, Osamu MIKUNI, Chikara SAITO, Keiichi SUZUKI, Junichiro YOURA, Yoichi KITAMURA, Nobuyuki TSUTSUI, Tsuneo INUI, Takeshi NISHIMURA, Takashi HADA, Makoto KATO (+27 others)
1964 Tetsu to hagane  
doi:10.2355/tetsutohagane1955.50.12_2083 fatcat:3lbnisrhqnf6jkbgtx2nvu7afy

加工

Kazutomo KITAGAWA, Syujiro ONO, Osamu MIKUNI, Chikara SAITO, Keiichi SUZUKI, Junichiro YOURA, Yoichi KITAMURA, Nobuyuki TSUTSUI, Tsuneo INUI, Takeshi NISHIMURA, Takashi HADA, Makoto KATO (+27 others)
1964 Tetsu to hagane  
doi:10.2355/tetsutohagane1955.50.12_2099 fatcat:nswz4fysxnh6dhbq7tq2hcrzau

加工

Kazutomo KITAGAWA, Syujiro ONO, Osamu MIKUNI, Chikara SAITO, Keiichi SUZUKI, Junichiro YOURA, Yoichi KITAMURA, Nobuyuki TSUTSUI, Tsuneo INUI, Takeshi NISHIMURA, Takashi HADA, Makoto KATO (+27 others)
1964 Tetsu to hagane  
doi:10.2355/tetsutohagane1955.50.12_2074 fatcat:6cqyyr7hfnh6jnvrcrpub23l6a

Miocene bimodal volcanism in the Niigata oil and gas fields, northeast Japan. With special reference to the spreading of the back-arc basin
新潟油・ガス田地域における中新世バイモーダル火山活動 背弧海盆拡大との関連

Kenji Shuto, Susumu Kato, Jun'ichi Ohki, Hiroo Kagami, Hiroyuki Arato, Andrey I. Rezanov
1997 Journal of the Japanese Association for Petroleum Technology  
., Shuto, K. and Kagami, H., 1994: Middle Mio cenebimodal volcanism by asthenospheric upwell ing:Sr and Nd isotopic evidence from the back -arc region of the Northeast Japan arc. Geochem.  ... 
doi:10.3720/japt.62.45 fatcat:tnblfeznxzfhffn7ftnc2tgonq

A Multi-Level Model for Nonlinear Dispersive Water Waves

Susumu Kanayama, Hitoshi Tanaka, Nobuo Shuto
1999 Coastal Engineering 1998   unpublished
To improve the accuracy of depth-integrated models for water waves, it is important to express the vertical characteristic of wave motion properly. In the present study, a multilevel model for nonlinear dispersive water waves is derived, in which vertical profile of horizontal velocity is assumed to be a chain of quadratic portions. The properties of the model in dispersion relation and second order nonlinear interactions turned out to converge to that of the Stokes wave theory, with the increasing number of layers.
doi:10.1061/9780784404119.042 fatcat:dp5pbayvrzaxnnx6gmuyato5km
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