Chiroptical Properties of Homopolymers and Block Copolymers Synthesized From the Enantiomeric Monomers N-acryloyl-L-alanine and N-acryloyl-D-alanine Using Aqueous RAFT Polymerization
Document Type
Article
Publication Date
2006
Department
Polymers and High Performance Materials
Abstract
Chiral homo- and block copolymers based on the enantiomeric monomers N-acryloyl-l-alanine (ALAL) and N-acryloyl-d-alanine (ADAL) were prepared directly in water using controlled reversible addition–fragmentation chain transfer (RAFT) polymerization. The polymerization of the chiral monomers proceeded in a controlled fashion producing the respective homopolymers, block copolymers, and a statistical copolymer with targeted molecular weights and narrow molecular weight distributions. The chiroptical activity of these biomimetic polymers and their analogous model compounds was investigated using circular dichroism (CD). P(ALAL) and P(ADAL) were shown to be optically active exhibiting mirror image CD spectra. In addition, statistical and enantiomeric block copolymers prepared at 1:1 stochiometric ratios exhibited virtually no optical activity.
Publication Title
Australian Journal of Chemistry
Volume
59
Issue
10
First Page
749
Last Page
754
Recommended Citation
Lokitz, B. S.,
Stempka, J. E.,
York, A. W.,
Li, Y.,
Goel, H. K.,
Bishop, G. R.,
McCormick, C. L.
(2006). Chiroptical Properties of Homopolymers and Block Copolymers Synthesized From the Enantiomeric Monomers N-acryloyl-L-alanine and N-acryloyl-D-alanine Using Aqueous RAFT Polymerization. Australian Journal of Chemistry, 59(10), 749-754.
Available at: https://aquila.usm.edu/fac_pubs/2514