121st General Meeting of the KCS

Type Poster Presentation
Area Polymer Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code POLY.P-20
Subject Butterfly-Shaped Diphenylpyrimidine Molecule by Molecular Self-Assembly Pathways
Authors Keuck Cheon Bang, Kwang-Un Jeong*
Department of Polymer-Nano Science and Tech, Chonbuk National University, Korea
Abstract A butterfly shaped diphenylpyrimidine molecule (abbreviated as DPP6C) was newly synthesized because we understand the relationships between molecular packing structures, chemical structures, and photophysical properties of organic materials. The self-assembly of the asymmetric butterfly-shaped DPP6C molecules in the plastic crystal (PK) phase are mainly driven by the nanophase separation between aromatic cores and flexible alkyl tails. However, the interactions of DPP are limited because the aromatic cores of DPP6C have nonplanarity property. Photophysical properties of the organic π-conjugated small molecules can be tuned by controlling the molecular packing structures in the different phases. By the combination of scattering, spectroscopic, and microscopic experiments, we have demonstrated that the peculiar monotropic phase transition behaviors of a butterfly-shaped DPP6C were originated from the nonplanarity of the DPP6C aromatic mesogen. This work was supported by BK21 Plus program, the BRL 2015042417, Mid-Career Researcher Program (2016R1A2B2011041).
E-mail rmrcjs93@jbnu.ac.kr