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Preparation of chiral amino acid materials and the study of their interactions with 1,1-Bi-2-naphthol
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Moore, Beth L. and O'Reilly, Rachel K. (2012) Preparation of chiral amino acid materials and the study of their interactions with 1,1-Bi-2-naphthol. Journal of Polymer Science Part A: Polymer Chemistry, Vol.50 (No.17). pp. 3567-3574. doi:10.1002/pola.26141 ISSN 0887-624X.
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Official URL: http://dx.doi.org/10.1002/pola.26141
Abstract
The amino acid tryptophan has been converted into acrylamide monomers using l/d-tryptophan methyl ester forming the enantiopure chiral monomers. Attempts were made to polymerize these monomers via reversible addition fragmentation chain transfer (RAFT) polymerization to form poly(tryptophan). Unfortunately, this proved difficult, and instead, a postpolymerization modification route was used by first synthesizing poly(pentafluorophenyl acrylate) via RAFT, which was then substituted with l-tryptophan methyl ester to give poly(l-tryptophan). The interactions of the newly synthesized tryptophan monomers, as well as previously reported phenylalanine monomers, were studied in the presence of rac-BINOL. It has been shown that the enantiomers of tryptophan have a stronger interaction with BINOL than phenylalanine and this has been attributed to the larger π system on the side chain. By monitoring the shifts and splitting of the phenolic protons of BINOL, it has been observed that S-BINOL interacts more favorably with l-monomer enantiomers and R-BINOL with d-monomer enantiomers. Similar interactions have also been seen with poly(phenylalanine) and the newly synthesized poly(tryptophan) materials. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Journal or Publication Title: | Journal of Polymer Science Part A: Polymer Chemistry | ||||
Publisher: | John Wiley & Sons Ltd. | ||||
ISSN: | 0887-624X | ||||
Official Date: | 2012 | ||||
Dates: |
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Volume: | Vol.50 | ||||
Number: | No.17 | ||||
Page Range: | pp. 3567-3574 | ||||
DOI: | 10.1002/pola.26141 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published |
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