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- Title
Molecular Geometry‐Directed Self‐Recognition in the Self‐Assembly of Giant Amphiphiles.
- Authors
Zhou, Yifan; Luo, Jiancheng; Liu, Tong; Wen, Tao; Williams‐Pavlantos, Kayla; Wesdemiotis, Chrys; Cheng, Stephen Z. D.; Liu, Tianbo
- Abstract
Three sets of polyoxometalate (POM)‐based amphiphilic hybrid macromolecules with different rigidity in their organic tails are used as models to understand the effect of molecular rigidity on their possible self‐recognition feature during self‐assembly processes. Self‐recognition is achieved in the mixed solution of two structurally similar, sphere‐rigid T‐shape‐linked oligofluorene(TOF4) rod amphiphiles, with the hydrophilic clusters being Anderson (Anderson‐TOF4) and Dawson (Dawson‐TOF4), respectively. Anderson‐TOF4 is observed to self‐assemble into onion‐like multilayer structures and Dawson‐TOF4 forms multilayer vesicles. The self‐assembly is controlled by the interdigitation of hydrophobic rods and the counterion‐mediated attraction among charged hydrophilic inorganic clusters. When the hydrophobic blocks are less rigid, e.g., partially rigid polystyrene and fully flexible alkyl chains, self‐recognition is not observed, attributing to the flexible conformation of hydrophobic molecules in the solvophobic domain. This study reveals that the self‐recognition among amphiphiles can be achieved by the geometrical limitation of the supramolecular structure due to the rigidity of solvophobic domains.
- Subjects
AMPHIPHILES; MOLECULAR recognition; MOLECULAR self-assembly; MOLECULAR shapes; POLYMERSOMES; POLYSTYRENE; MACROMOLECULES
- Publication
Macromolecular Rapid Communications, 2023, Vol 44, Issue 1, p1
- ISSN
1022-1336
- Publication type
Article
- DOI
10.1002/marc.202200216