Ring-Opening Metathesis Polymerization of Amino Acid-Functionalized Norbornene Diamide Monomers: Polymerization Behavior and Chiral Recognition Ability of the Polymers
✍ Scribed by Sutthira Sutthasupa; Fumio Sanda; Toshio Masuda
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 179 KB
- Volume
- 209
- Category
- Article
- ISSN
- 1022-1352
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✦ Synopsis
Abstract
Amino acid‐derived novel norbornene monomers were synthesized and polymerized with ruthenium catalysts. The polymerization rates were affected by the stereo structure of the monomers; exo,exo‐NBL underwent ROMP faster to give the polymers in higher yields than the endo,exo‐counterpart. The Grubbs 2nd generation catalyst was the most effective for the amino acid‐based monomers. A polymer gel was synthesized by the copolymerization of exo,exo‐NBL with 2.5 mol‐% of bifunctional norbornene monomer. The gel adsorbed larger amounts of (R)‐phenylalaninol and N‐(benzyloxycarbonyl)alanine than those of the (S)‐isomers.
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