Thermoelectrical Memory of Polymer Nanocomposites
- Resource Type
- Authors
- Fabienne Grillard; Alexander Korzhenko; Patrice Gaillard; Cécile Zakri; Philippe Poulin
- Source
- ACS Macro Letters
ACS Macro Letters, Washington, D.C : American Chemical Society, 2014, 3, pp. 224-228. ⟨10.1021/mz400637d⟩
- Subject
- chemistry.chemical_classification
Work (thermodynamics)
Materials science
Polymers and Plastics
Polymer nanocomposite
Organic Chemistry
Nanoparticle
02 engineering and technology
Polymer
Carbon nanotube
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
law.invention
Inorganic Chemistry
Shape-memory polymer
chemistry
Electrical resistivity and conductivity
law
Materials Chemistry
Memory functions
[PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]
Composite material
0210 nano-technology
- Language
- English
- ISSN
- 2161-1653
5 pages; International audience; The inclusion of nanoparticles improves the behavior of shape-memory polymers and allows new functionalities. It is shown in the present work that polyamide fibers loaded with carbon nanotubes (CNTs) exhibit novel memory functions associated to their electrical conductivity. Similar to classical shape memory polymers, the materials are predeformed at high temperature and then quenched down to room temperature and subsequently reheated. Their resistivity is recorded during the process and is found to decrease with temperature during the last heating stage. The rate of resistivity decrease exhibits a well-defined maximum at the temperature of predeformation. This unique response clearly shows an accurate thermoelectrical material memory. Temperature memory extended to electrical properties could serve for future sensing applications coupled to shape changes.