SFM: Heterogeneous Polymers
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Scanning Force Microscopy of Heterogeneous Polymers

25.02.98


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Inhaltsverzeichnis

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

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

Autor:Othmar Marti

E-Mail: othmar.marti@uni-ulm.de

Homepage: http://wwwex.physik.uni-ulm.de/

Weitere Informationen:
Übersicht Polymermechanik

 
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Othmar Marti
 Last modified: Montag, 11. November 2002