Two-Step Divergent Synthesis of Monodisperse and Ultra-Long Bottlebrush Polymers from an Easily Purifiable ROMP Monomer

Yoshihiro Yamauchi, Noriko Nishizawa Horimoto, Kuniyo Yamada, Yoshitaka Matsushita, Masayuki Takeuchi, Yasuhiro Ishida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The longest bottlebrush polymers reported so far (up to 7 μm in length) were synthesized in two steps from a norbornene derivative bearing two 2-bromoisobutylate moieties (NB). The key to this achievement is the excellent reactivity of NB in ring opening metathesis polymerization, which proceeded in a well-controlled manner with quantitative conversion of NB for monomer-initiator ratios ranging up to 10,000. The resultant polymer derived from NB was readily converted to various bottlebrush polymers in a divergent synthetic route by grafting vinyl monomers from the 2-bromoisobutylate units in NB via atom transfer radical polymerization. The structure of the ultra-long bottlebrush polymer was directly observed using atomic force microscopy.

Original languageEnglish
Pages (from-to)1528-1534
Number of pages7
JournalAngewandte Chemie - International Edition
Volume60
Issue number3
DOIs
Publication statusPublished - 2021 Jan 18
Externally publishedYes

Keywords

  • ATRP
  • ROMP
  • bottlebrush polymers
  • polymerization
  • single-molecule observation

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Fingerprint Dive into the research topics of 'Two-Step Divergent Synthesis of Monodisperse and Ultra-Long Bottlebrush Polymers from an Easily Purifiable ROMP Monomer'. Together they form a unique fingerprint.

Cite this