Precise Synthesis of Poly(macromonomer)s Containing Sugars by Repetitive ROMP and their Attachments to Poly(ethylene glycol)

摘要

Amphiphilic block copolymers (ABCs) attract considerable attention because they exhibit unique structures and properties on the formation of micelles via self-association in both hydrophilic and hydrophobic media. The preparation of poly(macro-monomer)s consisting of ABCs should introduce promising properties, not only because of their unique cylindrical, spherical and worm-like shapes in solution and bulk, but also because the hydrophobic/ hydrophilic parts in the ABCs can be tuned for the formation of various phase separated microstructures, nano-architectures. In this paper, we report precise synthesis of various ABCs containing sugars by living ring-opening metathesis polymerization (ROMP) of norbornene derivatives by Schrock-type Mo (A), Grubbs-type Ru (B) catalyst.