Self-Assembled Lamellar Nanostructures of Wholly Aromatic Rod−Rod-Type Block Molecules
journal contributionposted on 23.11.2006, 00:00 by Teruaki Hayakawa, Raita Goseki, Masa-aki Kakimoto, Masatoshi Tokita, Junji Watanabe, Yonngui Liao, Shin Horiuchi
Wholly aromatic rod−rod type di- and triblock molecules, oligo(ether sulfone)-b-oligo(ether ketone)s (OES-OEK), were synthesized to study a solid-state self-assembled nanostructure. The OES and OEK segments in the block molecules form segregated crystalline domains. The energy-filtering transmission electron microscopy images revealed that the di- and triblock OES-OEK co-oligomers formed lamellar nanostructures with a periodicity of ∼9 and 13 nm, respectively.