Scanning Force Microscopy of Heterogeneous Polymers
Content
Motivation
Stiffness Measurement
Range of Stiffness Measurements
Adhesion: Contact Angle
Adhesion in Force Microscopy
What Is Measured?
Polystyrene Samples
Polystyrene 2.4Force - Distance Curve
Polystyrene 6.5Force - Distance Curve
Polystyrene 100Force - Distance Curve
Temperature and Molecular Weight Dependence
Tool: Pulsed Force Mode
Poor Man’s Simulation
Setup and Geometry
Comparison: Measurement ?Simulation
Polypropylene Sample Preparation
PP Spherulites
Temperature and Polymers
The Heater Stage
Measurement Procedure
Poly(4-methyl-1-pentene) (TPX)
Temperature Dependence of Topography: TPX
Temperature Dependence of Adhesion: TPX
Temperature Dependence of Adhesion in Force-distance Mode
Temperature Dependence of Adhesion in Pulsed-force-mode
Temperature Depen-dence of Adhesion: Comparison
Results
Comparison of Operating Modes
Summary
Thanks
E-Mail: othmar.marti@uni-ulm.de
Homepage: http://wwwex.physik.uni-ulm.de/
Weitere Informationen: Übersicht Polymermechanik
Zurück zur Homepage der Experimentellen Physik
Othmar Marti Last modified: Montag, 11. November 2002