Smart Polymers: VII-Thermochromics and Their Applications

Document Type : compile

Authors

1 Iran Polymer and Petrochemical Institute

2 PhD student, IPPI

3 Iran polymer & petrochemical institute

4 IPPI, Tehran, Iran

Abstract

Stimuli-responsive materials based on thermochromic are 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 characteristics of these
polymers are their microscopic response to small environmental changes and they can
return to their initial state under further stimulus. These polymers may respond to several
triggers such as light, temperature, mechanical factors, electrical and magnetic fields,
polarity, enzyme, and biomolecules. Recently, the rapid advancements on smart materials
with thermochromic properties have become a promising field. A thermochromic material
can be in the form of monomer or polymer, organic or inorganic compound, and a single
or a 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 fields such as thermochromic papers, inks, sensors and thermometers.

Keywords

Main Subjects


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