Polymer glass transitions switch electron transfer in individual molecules.
Essentially complete photoinduced electron transfer quenching of the fluorescence of a perylene-calixarene compound occurs in poly(methyl acrylate) and poly(vinyl acetate) above their glass transition temperatures (T(g)), but the fluorescence is completely recovered upon cooling the polymer matrix to a few degrees below the T(g). The switching can be observed in an on/off fashion at the level of individual molecules.
Siekierzycka
Joanna R
JR
Van't Hoff Institute for Molecular Sciences, Universiteit van Amsterdam, Nieuwe Achtergracht 129, 1018 WS Amsterdam, The Netherlands.
Hippius
Catharina
C
Würthner
Frank
F
Williams
René M
RM
Brouwer
Albert M
AM