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Solvent-free autocatalytic supramolecular polymerization.
Chen, Zhen; Suzuki, Yukinaga; Imayoshi, Ayumi; Ji, Xiaofan; Rao, Kotagiri Venkata; Omata, Yuki; Miyajima, Daigo; Sato, Emiko; Nihonyanagi, Atsuko; Aida, Takuzo.
Afiliación
  • Chen Z; RIKEN Center for Emergent Matter Science, Wako, Saitama, Japan.
  • Suzuki Y; Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
  • Imayoshi A; Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.
  • Ji X; RIKEN Center for Emergent Matter Science, Wako, Saitama, Japan.
  • Rao KV; Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
  • Omata Y; RIKEN Center for Emergent Matter Science, Wako, Saitama, Japan.
  • Miyajima D; RIKEN Center for Emergent Matter Science, Wako, Saitama, Japan.
  • Sato E; RIKEN Center for Emergent Matter Science, Wako, Saitama, Japan.
  • Nihonyanagi A; RIKEN Center for Emergent Matter Science, Wako, Saitama, Japan.
  • Aida T; RIKEN Center for Emergent Matter Science, Wako, Saitama, Japan. daigo.miyajima@riken.jp.
Nat Mater ; 21(2): 253-261, 2022 02.
Article en En | MEDLINE | ID: mdl-34650229
Solvent-free chemical manufacturing is one of the awaited technologies for addressing an emergent issue of environmental pollution. Here, we report solvent-free autocatalytic supramolecular polymerization (SF-ASP), which provides an inhibition-free template-assisted catalytic organic transformation that takes great advantage of the fact that the product (template) undergoes a termination-free nucleation-elongation assembly (living supramolecular polymerization) under solvent-free conditions. SF-ASP allows for reductive cyclotetramerization of hydrogen-bonding phthalonitriles into the corresponding phthalocyanines in exceptionally high yields (>80%). SF-ASP requires the growing polymer to form hexagonally packed crystalline fibres, which possibly preorganize the phthalonitriles at their cross-sectional edges for their efficient transformation. With metal oleates, SF-ASP produces single-crystalline fibres of metallophthalocyanines again in exceptionally high yields, which grow in both directions without terminal coupling until the phthalonitrile precursors are completely consumed. By taking advantage of this living nature of polymerization, multistep SF-ASP without/with metal oleates allows for the precision synthesis of multi-block supramolecular copolymers.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polímeros Tipo de estudio: Observational_studies / Prevalence_studies / Risk_factors_studies Idioma: En Revista: Nat Mater Asunto de la revista: CIENCIA / QUIMICA Año: 2022 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Polímeros Tipo de estudio: Observational_studies / Prevalence_studies / Risk_factors_studies Idioma: En Revista: Nat Mater Asunto de la revista: CIENCIA / QUIMICA Año: 2022 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Reino Unido