Abstract
Herein is presented the preparation and characterization of a composite material obtained by the combination of nanosheets of a coordination polymer (CP) based on the copper(I)-I double chain with response to temperature and pressure with polylactic acid (PLA) as biodegradable organic matrix. The new films of composite materials are generated using a simple and low-cost method and can be created with long lateral dimensions and thicknesses ranging from a few microns to a few nanometers. Studies show that the new material maintains the optical response versus the temperature, while the elasticity and flexibility of the PLA totally quenches the response to pressure previously observed for the CP. This new material can act as a reversible sensor at low temperatures, thanks to the flexibility of the copper(I)-iodine chain that conforms the CP. The addition of CP to the PLA matrix reduces the elastic modulus and ultimate elongation of the organic matrix, although it does not reduce its tensile strength.
Highlights
Coordination polymers (CPs) are a family of compounds formed by combination of two or more building blocks that bring together metal entities with organic and/or inorganic molecules; these building blocks make use of coordination bonds to form the coordination polymer (CP)’s main network
We show an easy and simple preparation methodology of new smart composite thin films with interesting optical and mechanical properties, formed by the combination of nanosheets of the CP with formula [Cu2I2(Apyz)]n (Apyz = 2-aminopyrazine) with polylactic acid (PLA) as organic matrix, namely [Cu2I2(Apyz)]n@PLA
2(Apyz)]n (Figure 2a) has been selected to prepare a smart composite material because of its fabrication of composite films with nanometric thicknesses requires the incorporation of optical properties i.e., reversible thermo- and mechanoluminescent response. coordination
Summary
Coordination polymers (CPs) are a family of compounds formed by combination of two or more building blocks that bring together metal entities with organic and/or inorganic molecules; these building blocks make use of coordination bonds to form the CP’s main network. They can be designed following simple principles of modular chemistry to form structures with different dimensionality (1D, 2D, or 3D) and a wide variety of architectures; the selection of the building blocks can modulate their physical properties. They are candidates for different technological applications in fields [6] such applications as sensors ofin pollutants metals or toxic gases separation technological fields [6]such suchasasheavy sensors of pollutants suchinaswater, heavygases metals or toxic and entrapment [7], or catalysts [8].
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