2 research outputs found
Crystallization-Induced Redox-Active Nanoribbons of Organometallic Polymers
Polymer/inorganic
functional nanostructures are essential for the
fabrication of high-performance nanodevices in the future. The synthesis
of hybrid nanostructures is hindered by complicated synthetic protocols
or harsh conditions. Herein, we report a facile and scalable method
for the synthesis of organometallic polymer nanoribbons through crystallization
of polymers capped with a ferrate complex. Nanoribbons consisted of
a single crystalline polymer lamella coated with a redox-active ferrate
complex on both sides. The nanoribbons had a width of approximately
70 nm and a thickness of 10 nm. With the merit of highly ordered crystalline
structures of polymers and functional coating layers, as well as a
highly anisotropic nature, the nanoribbons are useful in nanodevices
and biosensors
General Platform for Remarkably Thermoresponsive Fluorescent Polymers with Memory Function
Memory
polymers capable of remembering their shape or thermal history
have attracted increasing interest due to their potential applications
in smart and medical devices. Memory polymers established are mechanically
based, which suffer from some inherent limitations such as low sensitivity
and bulky size. Here, we develop a general platform for sensitive
memory polymers. Incorporating crystallizable polymers with solid-state
fluorescent dyes results in crystallizable fluorescent polymers. Such
polymers show remarkably temperature-dependent fluorescence emission.
Interestingly, fluorescence of the polymers shows a hysteresis between
heating and subsequent cooling scans, which offers them a valuable
thermally
stimulated recording function. Both off–on and on–off
recording functions can be achieved. Characters recorded on the
polymer films can be erased and rewritten. Moreover, thermal history
subjected to the polymers can be memorized
and retrieved by measuring fluorescence intensity. With the merit
of easy synthesis, recording function, remarkably thermoresponsive
fluorescence with memory function, superior flexibility, and biocompatibility
inherited from polymers, crystallizable fluorescent polymers offer
a general platform for memory fluorescent polymers that are potentially
useful for biosensing, recording materials, and smart devices