119th General Meeting of the KCS

Type Symposium
Area Recent Trends in Polymer Synthesis: Supramolecular Polymerization
Room No. 405호
Time FRI 14:50-:
Code POLY3-2
Subject Light-controlled self-assembly and polymerization of triphenylamine derivatives with supramolecular chirality
Authors 서명은
KAIST 나노과학기술대학원, Korea
Abstract Self-assembly of molecules via noncovalent interaction offers a fascinating route to construct organic nanomaterials by a “bottom-up” approach. The process requires to use of molecules with deliberately designed shape and functionality so they assemble following the information encoded in the molecular structure. Inducing a conformational change of the molecule by applying an external stimulus such as light can provide a new dimension on molecular self-assembly, enabling control of the self-assembly process with human intervention. In this talk, I will show the entire process of induction, control, and locking of supramolecular chirality can be manipulated by circularly polarized light (CPL), where the inherent chiral information encoded in the light is transferred into self-assembled aggregates. Taking a family of triphenylamine-containing molecules as an example that self-assembles in a solution and forms helical stacks upon light exposure, I will discuss control of the self-assembling behavior by controlling wavelength and rotational direction of the CPL.
E-mail seomyungeun@kaist.ac.kr