Premium
Concentration‐Dependent Self‐Assembly of a Novel Comb Oligomer Having Rigid Binaphthyl Macrocyclic Pendants
Author(s) -
Liu Na,
Wang Xing,
Cao Hui,
Chen Chunhai,
Zhang Wanjin,
Wei Yen
Publication year - 2005
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200500570
Subject(s) - oligomer , monomer , materials science , polymer chemistry , polymerization , self assembly , acrylate , polymer , nanotechnology , composite material
Summary: The synthesis and self‐assembly of a comb oligomer having rigid racemic binaphthyl macrocyclic pendant groups are described. The coupling of two structural motifs at the molecular level, e.g., a nanometer‐size chiral cavity, and a flexible polymeric backbone, could lead to new opportunities in molecular recognition and separation. The macrocyclic monomers were synthesized followed by introduction of an acrylate side‐group, and through free‐radical polymerization, they yielded a comb oligomer. Most importantly, this novel oligomer can self‐assemble into solid or hollow spheres when tetrahydrofuran (THF) solutions of the oligomer at different concentrations are dropped onto the surface of water. The morphology of the solid or hollow spheres was observed by TEM, ESEM and DLS.A schematic illustration of the processes of self‐assembly of the oligomer.