Thiol-benzoxazine chemistry as a novel Thiol-X reaction for the synthesis of block copolymers

Abdulrahman Musa, Baris Kiskan, Yusuf Yagci*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

A novel synthetic procedure is reported for the preparation of block copolymers by means of successive 1,3-benzoxazine-thiol and Husigen type azide-alkyne coupling methodologies in one-pot and sequential synthesis. The applied 1,3-benzoxazine-thiol process based on catalytic opening of the lateral benzoxazine rings by thiols is proposed as a new thiol-X chemistry. Azide functional poly(methyl acrylate) (PMA-N3), poly(ethylene glycol) (PEG-N3) and thiol functional polystyrene (PS-SH) were prepared. The obtained PMA-N3 or PEG-N3, PS-SH and propargyl benzoxazine as a click-linker were reacted in sequential or one-pot two step manner to yield desired PS-b-PMA and PS-b-PEG block copolymer. The described thiol-benzoxazine chemistry offers a facile and efficient route to exploring the many possibilities in macromolecular synthesis.

Original languageEnglish
Pages (from-to)5550-5556
Number of pages7
JournalPolymer
Volume55
Issue number22
DOIs
Publication statusPublished - 23 Oct 2014

Bibliographical note

Publisher Copyright:
© 2014 Elsevier Ltd.

Keywords

  • Benzoxazine
  • Ring-opening reaction
  • Thiol chemistry

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