Journal
LANGMUIR
Volume 29, Issue 14, Pages 4640-4646Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la400390b
Keywords
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Funding
- National Nature Science Foundation of China [21074149, 51 173201]
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Swelling of block copolymers is a complex process in which deformation and microphase separation couple together. Here we demonstrated that nanoparticles of block copolymers and polymer composites which have a large variety of phase separation patterns and different shapes can be generated through swelling process. Particularly, we focused on the swelling process of lamellae-forming diblock copolymer nanoparticles and first observed the formation of terrace edges in diblock copolymer nanoparticles as a metastable microstructure in swelling. Moreover, the trace amount of swelling solvent shows a significant influence on the shape of polymer nanoparticles, leading to block copolymer nanodisks and snowman-like composite nanoparticles.
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