| 초록 |
Bottlebrush block copolymers (BBCPs) exhibit a distinct brush-like topology, which extends their conformations. Here, we report the solution self-assembly of amphiphilic BBCPs with poly(ethylene glycol) (PEG) and polystyrene (PS) as pendants attached to a polynorbornene backbone. Similar to the self-assembly of conventional linear BCPs, the BBCPs underwent a morphological transition from spherical micelles to vesicles as their brush-ratio decreased. We found that the BBCPs self-assembled into inverse mesophases when the value of wPEG was below 7%. In particular, highly symmetric icosahedral cubosomes of BBCPs with internal double diamond lattices were formed when allowed to undergo self-assembly for an extended time period. This condition led us to find new morphologies from self-assembly of BBCPs in a dilute solution such as nanotubes and tubular networks, were analogous to the reticulated cylindrical micelles observed from the nonergodic assembly of linear BCPs. |
