عنوان مقاله [English]
Stimuli-responsive materials based on thermochromic is a new class of smart materials that has received a great deal of attention in the recent decades. The importance of smart polymers or stimuli-responsive polymers is growing due to having properties such as toughness, simple processability, flexibility, elasticity, biocompatibility as well as being capable of reversible chemical and physical changes in response to variable environmental conditions relative to inorganic materials. The most important characteristic of these polymers is their microscopic response to small environmental changes and they can return to their initial state under another stimulus. These polymers may respond to several triggers such as light, temperature, mechanical factors, electrical and magnetic fields, polarity, enzyme, and bio-molecules.
Recently, the rapid advancements on smart materials with thermochromic properties have become promising field. A thermochromic material can be in the form of monomer or polymer, organic or inorganic compound, and a single or multi-component system. The color of these compounds can change spontaneously or continuously in response to changes in temperature in a reversible way which is as the result of changes in light reflection, absorption or scattering properties. These materials could be used in several fileds such as thermochromic papers, inks, smart windows and thermometer.