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Poly( p ‐phenylenevinylene) Derivatives with Defined Conjugation Segments and Post‐Polymerization Modification with Sterically Enshrouded Chromophores
Author(s) -
Buelt Ashley A.,
Colberg Allison J.,
Dennis Ashlyn E.,
Jecen Kristine M.,
Morgan Brad P.,
Smith Rhett C.
Publication year - 2010
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200900755
Subject(s) - chromophore , polymerization , intramolecular force , materials science , photochemistry , polymer chemistry , steric effects , conjugated system , polymer , phenylene , chemistry , stereochemistry , composite material
Abstract Two poly( p ‐phenylenevinylene) derivative alternating copolymers ( P1‐I and P2‐I ) have been prepared featuring iodo substituents and m ‐phenylene units to periodically disrupt conjugation. P1‐I was derivatized with various chromophores to yield P1a‐f . In P1a‐f , the chromophores were positioned within a sterically protected pocket shielding them from interchain interactions so that intrachain interactions between polymer segments could be observed. Solution and film properties of polymers have been examined. Post‐polymerization chromophore modification leads to new photophysical properties such as intramolecular charge transfer and fluorescent resonance energy transfer processes in some cases.