Single Chain Collapse of Sequence-Controlled Graft Copolymers to Precision Synthesis of Core-Crosslinked Star Polymers
발표자
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초록
내용
Core-crosslinked star (CCS) polymers represent globular nanoparticles where linear polymeric arms radiate from the cross-linked core. An arm-first method has been generally employed for the synthesis of heteroarm CCS polymers by copolymerization of different macromonomers with a cross-linker such as divinylbenzene. However, control of arm number and compartmentalization with distinct arms has been challenging. Here, we introduce a new synthetic approach to CCS polymers by single chain collapse of well-defined graft copolymer precursors. We prepare sequence-controlled graft copolymers via grafting-through copolymerization and collapse them by intramolecular dimerization. Synthesis, characterization, and self-assembly behavior of the CCS polymers will be discussed.