Anisotropic Coarse-Grained Model for Conjugated Polymers: Investigations into Solution Morphologies

Alexander E. Cohen, Nicholas E. Jackson, Juan J. De Pablo

Research output: Contribution to journalArticlepeer-review

Abstract

The optoelectronic properties of conjugated polymers are dictated by the interplay of multiscale structural features, including intrachain dihedrals, interchain π-πstacking, and the complex mesoscale morphology. While much is known about the structures of polymers with isotropically interacting monomers, little is known about polymers with strongly anisotropic backbone monomers, a class of materials to which conjugated polymers belong. Fundamental understanding is further complicated when the semiflexible and molecularly heterogeneous nature of conjugated polymers is taken into account. We present an anisotropic coarse-grained (CG) model for conjugated polymers that incorporates key molecular features (monomer anisotropy, intermonomer dihedrals, and side chains). The model is employed to characterize the single-chain conformational properties of conjugated polymers, revealing a rich temperature-dependent conformational landscape. These studies provide a critical link between CG molecular descriptors and conformational ordering in conjugated polymers.

Original languageEnglish (US)
Pages (from-to)3780-3789
Number of pages10
JournalMacromolecules
Volume54
Issue number8
DOIs
StatePublished - Apr 27 2021

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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