Synthesis and Self-assembly of Saccharide-mimic Block Copolymers
발표자
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초록
내용
High-χ block copolymers containing both oligosaccharides and synthetic polymer are capable of microphase separation at low molecular weights and thus exhibit domain morphologies with periodicity below 10 nm. However, as saccharides are susceptible to dehydration and degradation, saccharide-based block copolymers can undergo irreversible morphology changes at high temperatures. In this study, we synthesize diblock copolymers consisting of saccharide-mimic glycopolymer and synthetic polystyrene (PS) in an attempt to improve material thermal stability while preserving its high-χ properties. The glycopolymer is synthesized by introducing a polymerizable acrylate group into glucose, followed by RAFT polymerization. The desired glycopolymer-b-PS block copolymer is generated by sequential RAFT polymerization. The bulk morphology of glycopolymer-b-PS is examined by small-angle X-ray scattering, and the self-assembly behavior is also compared to that of saccharide-based block copolymer analog.