Abstracts Book - IMRC 2018

• SB1-O005 Invited Talk
CONJUGATED POLYMERS WITH FUSED HYDROGEN BOND
Yu Zhu 1
1 University of Akron, Department of Polymer Science, United States.
Charge transfer, which is essential for organic electronics, is not only
determined by molecular orbital energies, but also strongly correlated with
structural information, such as molecular conformation, molecular packing,
thin-film crystallinity and alignment/interconnection of the crystalline grains.
Understanding the interplay between intermolecular interactions and crystal
structure and being able to control it are essential to achieving the desired
molecular packing and interconnection of the crystalline grains, enabling the
control of charge transfer in organic materials. In this work, we demonstrated
π-conjugated polymers with fused intermolecular hydrogen bonds capable of
modulating the π-π stacking of molecules and improving interchain charge
transport. The designed hydrogen bond sites were fused with conjugated units
to form a rigid structure. To overcome the insolubility issue of strong hydrogen
bonded molecules that are rigid, we utilized the latent hydrogen bonding. The
hydrogen bonding on the monomers was blocked by labile groups for the
polymerization. The resulting soluble conjugated polymers with latent hydrogen
bonding were thermally annealed to recover the hydrogen bonded states.
Structure analysis revealed the charge transport governance in small molecules
and polymers with fused hydrogen bond.
Keywords: Conjugated Polymer, Charge Transport, Hydrogen Bond
Presenting authors email: yu.zhu@uakron.edu