Mechanochemistry of Spiropyran under Internal Stresses of a Glassy Polymer
Richard Janissen, Georgy A. Filonenko
Abstract
. This new behavior of spiropyrans (SPs) enables their application for analysis of internal stresses distribution and their mechanochemical characterization on the molecular level. Spectroscopy and imaging based on SP mechanochemistry showed high topological sensitivity and allowed us to discern different levels of internal stress impacting various locations along the polymer chain. The nature of the developed technique allows for wide-field imaging of stress heterogeneities in polymer samples of irregular shapes and dimensions, making it feasible to directly observe molecular-level manifestations of mechanical stresses that accompany the formation of a vast number of solid polymers.
Topics & Concepts
MechanochemistrySpiropyranPolymerChemistryStress (linguistics)Chemical physicsInternal stressIsomerizationNanotechnologyComposite materialMaterials scienceOrganic chemistryPhilosophyLinguisticsCatalysisForce Microscopy Techniques and ApplicationsMechanical and Optical ResonatorsDigital Holography and Microscopy