Faculty Profiles - YOSHIDA Yoshiaki

Papers - YOSHIDA Yoshiaki

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Reprocessable Aliphatic Polydithiourethanes Based on the Reversible Addition Reaction of Diisothiocyanates and Dithiols Reviewed

Yoshida Y., Ohnaka K., Endo T.

Macromolecules 52 ( 16 ) 6080 - 6087 2019.08

Synthesis and physical properties of poly(urethane)s using vicinal diols derived from acrylate and styrene monomers Reviewed

Akbulut H., Yoshida Y., Yamada S., Endo T.

Journal of Polymer Science, Part A: Polymer Chemistry 57 ( 7 ) 799 - 805 2019.04

Methoxy-group control of helical pitch in stereoregular poly(2-ethynylmethoxynaphthalene) prepared by rhodium complex catalyst Reviewed

Mawatari Y., Yoshida Y., Huang K., Tabata M.

Polymers 11 ( 1 ) 2019.01

Proposed mechanism for the high-yield polymerization of oxyethyl propiolates with Rh complex catalyst using the density functional theory method Reviewed

Yoshida Y., Mawatari Y., Tabata M.

Polymers 11 ( 1 ) 2019.01

Advance of Radical Ring-Opening Polymerization and Development of Networked Polymers based on Radical System Invited Reviewed

Takeshi Endo and Yoshiaki Yoshida

Journal of Network Polymer, Japan 40 ( 1 ) 45 - 54 2019.01

Synthesis of polydithiourethanes and their thermal, optical, and mechanical properties originated from monomers structure Reviewed

Yoshida Y., Endo T.

Journal of Polymer Science, Part A: Polymer Chemistry 56 ( 19 ) 2255 - 2262 2018.10

Selective formation of a zwitterion adduct and bicarbonate salt in the efficient CO<inf>2</inf> fixation by N-benzyl cyclic guanidine under dry and wet conditions Reviewed

Yoshida Y., Aoyagi N., Endo T.

Beilstein Journal of Organic Chemistry 14 2204 - 2211 2018.08

Dependence of color change of vinylethylene carbonate copolymers having N-substituted maleimides on chemical structure by acid-base switching in solution and solid state Reviewed

Yoshida Y., Endo T.

Reactive and Functional Polymers 120 139 - 146 2017.11

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

© 2017 The copolymers of vinylethylene carbonate (VEC) and N-substituted maleimide (NMI) having various N-substituents were synthesized by radical polymerization. The color of P(VEC/NMI)s changed from colorless to red reversibly based on the acid-base switching in solution and solid state. Furthermore, the color depth of P(VEC/NMI) solution and powder changed systematically depending on the electric effect of N-substituents. However, the copolymers of styrene and NMIs barely changed under the same conditions. These color change and depth behaviors of NMI copolymers were analyzed in detail by UV–vis and IR spectra, and the results were also supported by the density functional theory (DFT) calculation for the model compound of maleimide tautomers. Additionally, the powder color of P(VEC/NMI)s changed reversibly before and after exposure to cigarette smoke and vinegar.

DOI： 10.1016/j.reactfunctpolym.2017.10.001

Scopus

Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85030773821&origin=inward

Synthesis and solid-state properties of crosslinked alternating copolymers of phenyl vinylethylene carbonate and N-substituted maleimides Reviewed

Yoshida Y., Endo T.

Journal of Applied Polymer Science 134 ( 35 ) 2017.09

Strictly Alternating Sequences When Copolymerizing Racemic and Chiral Acetylene Monomers with an Organo-Rhodium Catalyst Reviewed

Yoshida Y., Mawatari Y., Sasaki T., Hiraoki T., Wagner M., Müllen K., Tabata M.

Macromolecules 50 ( 4 ) 1291 - 1301 2017.02

Highly Selective CO2 Separation from Mixed Gases using Mono-substituted Polyacetylene Membranes Invited

Yoshiaki Yoshida, Yasuteru Mawatari, Masayoshi Tabata,

Chemical Industry 68 ( 1 ) 58 - 66 2017.01

Substituent dependence of imidazoline derivatives on the capture and release system of carbon dioxide Reviewed

Yoshida Y., Aoyagi N., Endo T.

New Journal of Chemistry 41 ( 23 ) 14390 - 14396 2017.01

Color change of alternating copolymers with phenyl vinylethylene carbonate and N-phenylmaleimide in a solution and in the solid-state, depending on their structure Reviewed

Yoshida Y., Endo T.

RSC Advances 7 ( 15 ) 9373 - 9380 2017.01

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

© The Royal Society of Chemistry. Radical copolymerization, with various monomer feeds of phenyl vinylethylene carbonate (PVEC) and N-phenylmaleimide (PMI), successfully proceeded through selective vinyl and alternating polymerization to obtain copolymers having the maleimide unit in the main-chain and the five-membered cyclic carbonate group in the side-chain. The structure of these copolymers was analyzed in detail using NMR, IR, and UV-Vis methods. The UV-Vis spectra supported the tautomerization of the maleimide unit based on the solvent effect and the alternating and/or homo sequence constructed depending on the monomer feeds. Furthermore, these copolymers exhibited sensitive and reversible color changes based on acid-base switching not only in solution but also in the solid-state. In particular, the color change in the solid-state occurred immediately after exposure to the amine vapor.

DOI： 10.1039/c6ra28446a

Scopus

Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85011103548&origin=inward

Synthesis and thermal properties of vinyl copolymers with phenyl vinylethylene carbonate and: N -substituted maleimides undergoing color change with acid-base switching Reviewed

Yoshida Y., Endo T.

Polymer Chemistry 7 ( 44 ) 6770 - 6778 2016.11

Mutual Conversion between Stretched and Contracted Helices and its External Stimuli Induced Drastic Colors and Geometrical Structures Changes of Substituted Polyacetylenes Prepared with an Organo-Rhodium Catalyst Reviewed International journal

Masayoshi Tabata, Yasuteru Mawatari, Yoshiaki Yoshida, and Takahiro Sasaki

Advances in Science and Technology ( Trans Tech Publications ) 97 18 - 23 2016.10

Radical polymerization behavior and thermal properties of vinyl ethylene carbonate derivatives bearing aromatic moieties Reviewed

Yoshida Y., Endo T.

Polymer 102 167 - 175 2016.10

Remarkably stretched cis-transoid helices generated in solid phase and solution of poly(carbazole acetylene) prepared using an organorhodium catalyst in Toluene Reviewed

Sasaki T., Yoshida Y., Mawatari Y., Tabata M.

Macromolecules 48 ( 4 ) 889 - 897 2015.02

Solid phase helical and crystal structures of poly(phenylacetylene)s with para-oligo ethylene oxy methylether moieties prepared with an organorhodium catalyst in ethanol Reviewed

Mawatari Y., Yoshida Y., Motoshige A., Motoshige R., Sasaki T., Tabata M.

European Polymer Journal 57 213 - 220 2014.08

Structural determination of stretched helix and contracted helix having yellow and red colors of poly(2-ethynylnaphthalene) prepared with a [Rh(norbornadiene)Cl]<inf>2</inf>-triethylamine catalyst Reviewed

Mawatari Y., Motoshige A., Yoshida Y., Motoshige R., Sasaki T., Tabata M.

Polymer 55 ( 10 ) 2356 - 2361 2014.05

Mutual conversion between stretched and contracted helices accompanied by a drastic change in color and spatial structure of poly(phenylacetylene) prepared with a [Rh(nbd)Cl]<inf>2</inf>-amine catalyst Reviewed

Motoshige R., Mawatari Y., Motoshige A., Yoshida Y., Sasaki T., Yoshimizu H., Suzuki T., Tsujita Y., Tabata M.

Journal of Polymer Science, Part A: Polymer Chemistry 52 ( 6 ) 752 - 759 2014.03

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Papers - YOSHIDA Yoshiaki