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Tuning the Electronic Structure and Solubility of Conjugated Polymers with Perfluoroalkyl Substituents: Poly(3‐perfluorooctylthiophene), the First Supercritical CO 2 ‐soluble Conjugated Polymer
Author(s) -
Li L.,
Counts K. E.,
Kurosawa S.,
Teja A. S.,
Collard D. M.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200305333
Subject(s) - conjugated system , polymer , materials science , supercritical carbon dioxide , solubility , supercritical fluid , excited state , doping , polymer chemistry , ground state , photochemistry , chemical engineering , organic chemistry , chemistry , optoelectronics , physics , quantum mechanics , nuclear physics , composite material , engineering
Poly(3‐perfluorooctylthiophene) is the first reported conjugated polymer that is soluble in supercritical carbon dioxide (see Figure). The electron‐withdrawing nature of the perfluoroalkyl groups affords a material that undergoes reversible reduction (n‐doping), and the polymer displays a large Stokes shift because of a large difference in the conformation of the ground state and a more planar excited state.