Solid-state polymerization behaviors of polydiacetylene nanofibers

Rie Chiba, Tsunenobu Onodera, Hitoshi Kasai, Hidetoshi Oikawa

Research output: Contribution to journalArticlepeer-review

Abstract

The conversion curve of solid-state polymerization in polydiacetylene (PDA) nanofibers (NFs) was so different from that of PDA nanocrystals (NCs). PDA NFs clearly showed the longer induction period, and the conversion rate was much higher than that of PDA NCs. These differences have been discussed on the basis of thermally softened crystal lattice in PDA NFs and/or PDA NCs. In addition, the excitonic absorption peak position of PDA NFs was red-shifted, compared with PDA bulk crystals. This fact suggests that PDA chains inside PDA NFs would be almost strain-free and the effective π-conjugation is fully extended possibly to the maximum level.

Original languageEnglish
Pages (from-to)89-96
Number of pages8
JournalMolecular crystals and liquid crystals
Volume704
Issue number1
DOIs
Publication statusPublished - 2020 Jun 12

Keywords

  • Conversion rate
  • excitonic absorption peak
  • nanocrystals
  • nanofibers
  • polydiacetylene
  • solid-state-polymerization

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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