"Supramolecular polymers based on quadruple hydrogen bonds"

Haruki Ohkawa, Rint P. Sijbesma, E. W. Meijer, Hiroyuki Nishide

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Novel syntheses of quadruply hydrogen-bonded Supramolecular alternating and graft copolymers based on ureidopyrimidinone (Upy) and 2,7-diamide-1,8- naphthyridine (Napy) heterodimerization (ADDA-DAAD motif) will be detailed. The Napy monomer was synthesized quite efficiently by using the palladium catalyzed Buchwald's direct amidation. The brand-new methodology for the efficient polymerization and characterization using a supramolecular protective group will be also reported. Furthermore, the new approach to modify a porphyrin ring with hydrogen bonding units will be mentioned, in connection with a ring-chain equilibrium.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Number of pages2
Publication statusPublished - 2005
Event54th SPSJ Symposium on Macromolecules - Yamagata
Duration: 2005 Sep 202005 Sep 22


Other54th SPSJ Symposium on Macromolecules


  • Quadruple hydrogen bonds
  • Supramolecular polymer
  • Supramolecular protective group

ASJC Scopus subject areas

  • Engineering(all)

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