Controlled copolymerization by metal complexes [20]. Design of chiral aluminum complexes for stereospecific alternating copolymerization of carbon dioxide and meso-epoxide

Kiyoshi Nishioka, Hiroaki Ohtsuka, Hiroshi Sugimoto, Shohei Inoue

Research output: Contribution to conferencePaper

Abstract

Herein, we wish to report stereo specific alternating copolymerization with chiral aluminum complexes. The complex 3 with DMAP produced polycarbonate at 60°C in 72 hours in high selectivity (>99% carbonate, 10% yield, M n=28,800, Mw/Mn=1.9). Trans-1,2-diol, which was obtained by alkali-catalyzed hydrolysis of the copolymer, showed optically active (59%ee(R,R)). When MAD was employed for accelerating copolymerization, reaction progressed rapidly (c.a. 30 times faster ).

Original languageEnglish
Pages2751-2752
Number of pages2
Publication statusPublished - 1 Dec 2006
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan
Duration: 20 Sep 200622 Sep 2006

Conference

Conference55th Society of Polymer Science Japan Symposium on Macromolecules
CountryJapan
CityToyama
Period20/09/0622/09/06

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Keywords

  • Aluminum complex
  • Carbon dioxide
  • Chiral
  • Copolymerization
  • Epoxide
  • Stereospecific

Cite this

Nishioka, K., Ohtsuka, H., Sugimoto, H., & Inoue, S. (2006). Controlled copolymerization by metal complexes [20]. Design of chiral aluminum complexes for stereospecific alternating copolymerization of carbon dioxide and meso-epoxide. 2751-2752. Paper presented at 55th Society of Polymer Science Japan Symposium on Macromolecules, Toyama, Japan.