| 초록 |
Heteroarm core cross-linked star (CCS) polymers consist of two different polymer chains covalently joined to a densely cross-linked core. If the two arms are immiscible within the CCS polymers, intramolecular segregation can occur to produce individual domains to produce Janus-like hairy nanoparticles. The covalently connection restricts conformational change of the polymer arms, however, realizing intramolecularly segregation has been considered challenging in heteroarm CCS polymers. We investigated how synthetic routes to the heteroarm CCS polymer influence on the intramolecular segregation behavior, and demonstrate that degree of intramolecular segregation can be tuned by controlling the polymerization environment. Tying the first arms by cross-linking polymerization and growing the second arm from the core in the selective solvent to the first polymer (“in-out” route) seems to produce the highest degree of intramolecular segregation. |
