Research Achievements - Original paper -

Highly Selective Precipitation of Platinum(IV) from HCl Solutions Using m-Phenylenediamine Utilizing Difference in Stability of Ionic Crystals

K. Matsumoto, Y. Hata, H. Katagiri, M. Jikei

Metals   15 ( 2 ) 165   2025.02  [Refereed]

Research paper (journal)   Domestic Co-author

Cell adhesion behavior of poly(l-lactide-co-glycolide)-poly(1,5-dioxepan-2-one) random multiblock copolymers

M. Jikei, V.T. Xoan, T. Nozomi, K. Matsumoto, H. Haruka, M. Hikida, S. Ueki

Journal of Applied Polymer Science   141 ( 28 )   2024.07  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Recovery of Re from Hydrochloric Acid Containing Pt, Al, V, Co and Ni by Precipitation Using Primary Amines

Kazuya Matsumoto, Rio Fujii, Yuki Hata, Mitsutoshi Jikei

Resources Processing   70 ( 1 ) 5 - 10   2023.06  [Refereed]  [Invited]

Research paper (journal)   Domestic Co-author

Functional Expression of Low Puncture Resistance and Physical Property Evaluation of a Suture Training Model Made of Polyurethanes

Nakamura Kozue, Ogasawara Masataka, Matsumoto Kazuya, Andoh Hideaki, Jikei Mitsutoshi

Journal of Fiber Science and Technology ( 一般社団法人 繊維学会 )  79 ( 1 ) 1 - 9   2022.09  [Refereed]

Research paper (journal)   Domestic Co-author

<p>Polyurethanes are applied as artificial skin materials for medical simulators. There is a difference between human skin and artificial skin for simulators with respect to “puncture resistance.” Based on comments from medical doctors who perform puncture procedures in clinical sites, puncturing human skin is expressed as “low needle resistance,” whereas the artificial skin for simulators is expressed as “high needle resistance.” It is possible to practice medical procedures with a more realistic sensation if the artificial skin’s puncture resistance is brought closer to that of the human skin. In this study, sensory evaluations via needle suturing and quantitative evaluation via measuring devices were performed to clarify the relationship between the puncture resistance force and physical properties of three artificial skin samples for a suture training model made of polyurethanes. The composition and molecular structures of the materials were confirmed using Fourier transform infrared spectroscopy and nuclear magnetic resonance. The puncture resistance force measurements showed that Regina’s artificial skin: MODEL A was the lowest in three samples. Additionally, we discovered that low Young’s modulus and the amount of plasticizer contributed to the decreasing puncture resistance of MODEL A. This study proposes methods to combine sensory evaluation by humans and experimental data of the materials for the suture training model.</p>

DOI CiNii Research

Synthesis and Antiplatelet Adhesion Behavior of a Poly(L-lactide-co-glycolide)-Poly(1,5-dioxepan-2-one) Multiblock Copolymer

M. Jikei, M. Takeda, Y. Kaneda, K. Kudo, N. Tanaka, K. Matsumoto, M. Hikida, S. Ueki

ACS Omega   6 ( 42 ) 27968 - 27975   2021.10  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Hyperbranched Polyphenylene as an Electrode for Li-Ion Batteries

L. S. Lobo, K. Matsumoto, M. Jikei, S. Ikeda, H Okawa

Energy Technology   9 ( 10 )   2021.08  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Selective recovery of platinum (IV) from HCl solutions using 2-ethylhexylamine as a precipitant

K. Matsumoto, Y. Sezaki, Y. Hata, M. Jikei

Separations   8 ( 4 )   2021.04  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Synthesis of hyperbranched polyphenylenes using aryl dichloride monomers by Suzuki polycondensation

L. S. Lobo, K. Matsumoto, M. Jikei

Polymers for Advanced Technologies   31 ( 8 ) 1875 - 1882   2020.08  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Synthesis of aromatic polyketones by nonstoichiometric Friedel-Crafts polycondensation using AlCl3

K. Matsumoto, C. Fukui, R. Shoji, M. Jikei

Polymer Chemistry   11 ( 26 ) 4221 - 4227   2020.07  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Rhodium(III) recovery from HCl solutions using 4-alkylaniline-impregnated resins

K. Matsumoto, S. Ohno, Y. Hata, Y. Sezaki, M. Jikei

International Journal of the Society of Materials Engineering for Resources   24 ( 1/2 ) 13 - 17   2020.06  [Refereed]

Research paper (journal)   Domestic Co-author

Synthesis and properties of hyperbranched aromatic polyimides via thermal self-polycondensation

K. Senthil, R. Hata, K. Matsumoto, M. Jikei

International Journal of the Society of Materials Engineering for Resources   24 ( 1/2 ) 23 - 28   2020.06  [Refereed]

Research paper (journal)   Domestic Co-author

Selective and mutual separation of palladium (II), platinum (IV), and rhodium (III) using aliphatic primary amines

K. Matsumoto, Y. Sezaki, S. Yamakawa, Y. Hata, M. Jikei

Metals   10 ( 3 )   2020.03  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Synthesis and properties of long-chain-branched poly(aryl ether sulfone)-poly(tetrahydrofuran) multiblock copolymers

M. Jikei, A. Sato, L. T. Ha, M. Takeda, K. Matsumoto, M. Sugimoto, H. Sato, G. Matsuba

Polymer Journal   52 ( 2 ) 179 - 188   2020.02  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Selective and Preferential Separation of Rhodium (III) from Palladium (II) and Platinum (IV) Using a m-Phenylene Diamine-Containing Precipitant

K. Matsumoto, S. Yamakawa, K. Haga, K. Ishibashi, M, Jikei, A. Shibayama

Scientific Reports   9 ( 1 )   2019.12  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Synthesis and properties of long-chain branched poly(L-lactide)s by self-polycondensation of AB2 macromonomers

M. Jikei, C. Terata, K. Matsumoto

Materials Today Communications   20   100528   2019.09  [Refereed]

Research paper (journal)   Domestic Co-author

Highly Selective Rh(III) Recovery from HCl Solutions Using Aromatic Primary Diamines via Formation of Three-Dimensional Ionic Crystals

K. Matsumoto, Y. Hata, Y. Sezaki, H. Katagiri, M. Jikei

ACS Omega   4 ( 11 ) 14613 - 14620   2019.09  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Preferential Precipitation and Selective Separation of Rh(III) from Pd(II) and Pt(IV) Using 4-Alkylanilines as Precipitants

K. Matsumoto, S. Yamakawa, Y. Sezaki, H. Katagiri, M. Jikei

ACS Omega   4 ( 1 ) 1868 - 1873   2019.01  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Antiplatelet adhesion behavior of hyperbranched poly(l-lactide)s containing glutamic acid terminal groups

M. Jikei, Y. Kobayashi, K. Matsumoto, M. Hirokawa, S. Ueki

Journal of Applied Polymer Science ( Journal of Applied Polymer Science )  136 ( 1 )   2019.01  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Synthesis and healing properties of poly(arylene ether sulfone)-poly(alkyl disulfide) multiblock copolymers

Y. Kawaguchi, K. Matsumoto, M. Jikei

Journal of Polymer Science, Part A: Polymer Chemistry   56 ( 13 ) 1358 - 1365   2018.07  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Synthesis and properties of hyperbranched poly(L-lactide)s having glutamic acid terminals

Y. Kobayashi, K. Matsumoto, M. Jikei

International Journal of the Society of Material Engineering for Resources   23 ( 1 ) 53 - 58   2018.03  [Refereed]

Research paper (journal)   Domestic Co-author

<p>The introduction of zwitterionic groups improves hydrophilicity and antithrombogenicity of the target materials. In this study, chemical modification of hydroxy terminals of hyperbranched poly(Llactide)s (AB₂ PLLAs) by glutamic acid (Glu) was performed to introduce zwitterionic hydrophilic groups. The structures of AB₂ PLLAs and Glu-esterified AB₂ PLLAs (AB₂ PLLA-Glus) were confirmed by NMR measurements. The contact angles of AB₂ PLLA-Glus were lower than those of AB₂ PLLA due to the influence of large number of Glu terminals. Microphase-separated morphology was observed on the film of AB₂ PLLA-Glu, which is a promising surface for anti-platelet adhesion.</p>

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