Conformation and physics of polymer chains: A single-molecule perspective

Martin Vacha*, Satoshi Habuchi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

62 Scopus citations

Abstract

Single-molecule optical detection and spectroscopy has emerged in recent years as an excellent tool for structural and dynamic characterization of materials and biological systems on nanometer scales. Measuring light emitted by individual molecules reveals static and dynamic heterogeneities that are otherwise hidden in the ensemble average. The removal of ensemble averaging is especially important in the study of polymers, where the complexity of the system is a result of the large size of individual molecules, of the distribution of their molecular weights, and the unique conformational state of each polymer molecule. This review aims to give an insight into the latest results of the application of single-molecule spectroscopy to the study of individual polymer chains. In particular, we focus on the relationship between the conformation (or structure) of the chain on the one hand and its physical properties on the other, primarily with respect to a very important class of organic semiconductors, the conjugated polymers. We review how the conformation of an individual polymer chain is reflected in its photophysical properties, such as exciton migration and localization, and fluorescence spectra. The review also covers the relationship between the conformation of synthetic non-conjugated polymers and their rheological properties.

Original languageEnglish (US)
Pages (from-to)134-142
Number of pages9
JournalNPG Asia Materials
Volume2
Issue number4
DOIs
StatePublished - Oct 1 2010

ASJC Scopus subject areas

  • Modeling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

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