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Double-Hydrophilic and Amphiphilic Block Copolymers Synthesized by RAFT Polymerization of Monomers Carrying Chiral Amino Acids

✍ Scribed by Hideharu Mori; Motonobu Matsuyama; Takeshi Endo

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
484 KB
Volume
210
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

Double‐hydrophilic and amphiphilic block copolymers with characteristic chiroptical properties (L‐L and L‐D types) were synthesized by RAFT polymerization. Five N‐acryloylamino acids with different hydrophilicity and chirality were employed, which included A‐(L)Phe‐OMe, A‐(L)Phe‐OH, A‐(L)Ala‐OH, and their D‐forms [A‐(D)Phe‐OH and A‐(D)Ala‐OH], respectively. The RAFT polymerization of the unprotected monomer using the hydrophobic and hydrophilic macro‐chain transfer agents provided well‐defined block copolymers. Chiroptical properties and assembled structures were evaluated by CD, UV‐vis and DLS measurements.

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