title: Sensitivity of carbon nanotubes to the storage of stress in polymers.
abstract: Residual stress in polymers arises from the freezing of unstable molecular conformations. Residual stress is critical because its relaxation can cause shrinkage, defects, and fractures of polymer materials. The storage of stress is purposely enhanced to develop shape memory materials. Unfortunately, the storage of mechanical stress is still poorly controlled and understood. An approach to sense the storage of stress based on the spectroscopic response of carbon nanotubes is explored. The Raman response of nanotubes exhibits a variable sensitivity to strain when embedded in polymers that have experienced different thermal and mechanical treatments. This unique feature opens up new possibilities for the use of carbon nanotubes as mechanical nanosensors.
authors.affiliation: Centre de Recherche Paul Pascal-CNRS, Université de Bordeaux, 115 avenue Schweitzer, 33600 Pessac, France.
authors.forename: Célia
authors.initials: C
authors.lastname: Mercader
authors.forename: Christèle
authors.initials: C
authors.lastname: Jaillet
authors.forename: Noa
authors.initials: N
authors.lastname: Lachman
authors.forename: Cécile
authors.initials: C
authors.lastname: Zakri
authors.forename: Maryse
authors.initials: M
authors.lastname: Maugey
authors.forename: Hanoch Daniel
authors.initials: HD
authors.lastname: Wagner
authors.forename: Philippe
authors.initials: P
authors.lastname: Poulin
mesh_terms: D037742:Nanotubes, Carbon; D013059:Spectrum Analysis, Raman / Q000379:methods; D013314:Stress, Mechanical
chemical_list: D037742:Nanotubes, Carbon