Výsledky vyhledávání - "Shohei Kumazawa"

Chirality amplification in helical block copolymers. Synthesis and chiroptical properties of block copolymers of chiral/achiral acetylene monomers

Autor: Masashi Shiotsuki, Shohei Kumazawa, Jesus Rodriguez Castanon, Takahiro Sato, Fumio Sanda

Publikováno v: Polymer Chemistry. 6:5931-5939

Block copolymers of N-tert-butoxycarbonyl-L-valine 4-ethynylanilide (1a) and N-tert-butoxycarbonylglycine 4-ethynylanilide (1b) with various compositions were synthesized by block copolymerization using a [(nbd)Rh{C(Ph)CPh2}(PPh3)]/PPh3 catalyst. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::073ed1cb80c813aa27f23c3247e584b7
https://doi.org/10.1039/c5py00743g

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Characterization of the Polymerization Catalyst [(2,5-norbornadiene)Rh{C(Ph)═CPh2}(PPh3)] and Identification of the End Structures of Poly(phenylacetylenes) Obtained by Polymerization Using This Catalyst

Autor: Naoya Onishi, Masashi Shiotsuki, Shohei Kumazawa, Jesus Rodriguez Castanon, Keiko Kuwata, Fumio Sanda

Publikováno v: Organometallics. 31:6834-6842

The structures of [(2,5-norbornadiene)Rh{C(Ph)═CPh2}(PPh3)] (1) and its reaction product with CH3CO2H were elucidated by 1H, 13C, and 31P NMR spectroscopy, mass spectrometry, and single-crystal X-ray analysis. The presence of two conformational iso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1da30f829c9172914230c61c35fd4ba
https://doi.org/10.1021/om300642b

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Molecular weight dependence of helical conformation of amino acid‐based polyphenylacetylenes

Autor: Fumio Sanda, Shohei Kumazawa, Naoya Onishi, Masashi Shiotsuki

Publikováno v: Journal of Polymer Science Part A: Polymer Chemistry. 49:4921-4925

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::40b36d46c6bf8701bd7dd7a4c3ae3b11
https://doi.org/10.1002/pola.24941

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