Fabrication of Highly Fluorescent Temperature-Sensitive
Composites Based on a Synergistic Molecular Mechanism between Hydrogen-Bonded/AIEgen-Modified
Conjugated Polymers and Polymer Substrates
posted on 2022-11-21, 22:34authored byLan Shu, Mengxiao Song, Xinran Ma, Siqian Li, Yu Xu, Yuan Gao, Shuyan Zhang, Linlin Su, Jin Huang
The
mechanism of intermolecular interaction between conjugated
polymers (CPs) and a polymer matrix plays a decisive role in understanding
and developing highly sensitive fluorescent temperature-sensing (FTS)
materials. Therefore, a molecular mechanism based on a synergistic
molecular mechanism, which is assisted by the interaction of an aggregation-induced
emission luminogen (AIEgen) and hydrogen bonding between CPs and the
matrix, is proposed and applied to the development of FTS composite
materials. A series of highly sensitive FTS composites, which can
be applied to different temperature ranges and scenarios, have been
prepared from the perspective of molecular structure engineering based
on an AIEgen- and uracil-group-modified CPs/polymer matrix composite
system. In addition, the effectiveness and universality of the synergistic
molecular mechanism can be proved by changing the molecular structure
of optical CPs and the types of polymer substrates. Therefore, the
synergistic molecular mechanism as a guide for molecular structure
design can be proved to become a promising method for the preparation
of highly sensitive FTS composite materials.