Abstract
Amino acid-based amphiphilic block copolymers involving poly(N-acryloyl-L-alanine), poly(A-Ala-OH), which exhibits a characteristic chiroptical property and pH-dependent solubility, have been synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. The direct polymerization of A-Ala-OH without any protecting chemistry using the dithiocarbamate-terminated polystyrene or poly(N-acryloyl-L-phenylalanine methyl ester) as a macrochain transfer agent produced well-defined amphiphilic block copolymers. The self-assembly behaviors and chiroptical properties of these amphiphilic block copolymers in selective solvents were investigated by dynamic light scattering, circular dichroism, and UV–Vis spectroscopic methods.
Published Version
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