Phase separation approach to a reactive polycarbonate monolith for "click" modifications

Yuanrong Xin, Junji Sakamoto, André J. Van Der Vlies, Urara Hasegawa, Hiroshi Uyama

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A new polycarbonate monolith carrying allyl groups has been introduced. The monolith was fabricated via the phase separation induced by adding cyclohexane to a solution of the polymer in chloroform. Cross-sectional analysis of the monolith was performed by scanning electron microscopy that unveiled a three-dimensionally networked porous structure inside the monolith. As a result of nitrogen adsorption/desorption experiments, the specific surface area of the monolith was calculated to be 145 m2/g with the Brunauer Emmett Teller equation. The allyl groups of the monolith were subjected to a thiol-ene click reaction with 2-mercaptoethanol and an olefin metathesis with a Grubbs catalyst. With the porous structure largely maintained, the click reaction attained high conversions and the metathesis internally crosslinked the monolith to the degree that confers solvent resistance. These results qualify the present monolith as a versatile platform for chemical transformations into a wide range of functional monoliths.

Original languageEnglish (US)
Pages (from-to)52-57
Number of pages6
JournalPolymer
Volume66
DOIs
StatePublished - Jun 1 2015

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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