초록 |
Bottlebrush polymers are graft polymers containing grafted chains with every repeating units. Due to their unique structure, bottlebrush polymers exhibit high density of functional groups as well as extended conformation due to repulsion of the graft chains. Here we explored synthesis of bottle brush polymer via graft-through ring-opening methatheis polymerization (ROMP) of branched multiblock macromonomers (BMMs) towards asymmetric bottlebrush polymers with two different surfaces. By utilizing single monomer unit insertion (SUMI) in the reversible addition-fragmentation chain transfer (RAFT) process, we will discuss synthesis of the BMMs containing two, three, and four blocks with different compositions and subsequent ROMP of the BMMs to complete the target bottlebrush polymer. Characterization of the bottlebrush polymers and their self-assembly behaviors will be also presented. |