UNIGE document Scientific Article
previous document  unige:92417  next document
add to browser collection
Title

Effect of toluene extraction on Biomer™ surface: II. An atomic force microscopy study

Authors
Published in Journal of Biomaterials Science, Polymer Edition. 1996, vol. 7, no. 5, p. 425-438
Abstract The surface characterization of Biomer™ and extracted Biomer™ has been investigated using atomic force microscopy (AFM) in order to show the influence of extraction process on the morphology and local interactions which monitor surface properties at a molecular scale. The high viscoelasticity of these polymers provided by the soft segments makes AFM imaging in contact mode quite difficult, the scanning of the tip inducing artifacts on the surface. The rate, direction, and number of scans strongly influence this friction effect. The recording of force curves has shown that the extraction and conditions of drying can modify the interaction forces present at the polymer surface. Imaging of the extracted Biomer™ obtained with AFM in non-contact mode has revealed inclusion nodules embedded in an amorphous phase. This may be attributed to the migration at the surface of the non-eliminated poly(aminomethacrylate) additive.
Keywords PolyurethaneBiomer™Surface characterizationAtomic force microscopyImagingFriction
Identifiers
Full text
Article (Published version) (919 Kb) - document accessible for UNIGE members only Limited access to UNIGE
Structures
Citation
(ISO format)
NURDIN, Nathalie, DESCOUTS, Pierre. Effect of toluene extraction on Biomer™ surface: II. An atomic force microscopy study. In: Journal of Biomaterials Science, Polymer Edition, 1996, vol. 7, n° 5, p. 425-438. https://archive-ouverte.unige.ch/unige:92417

126 hits

0 download

Update

Deposited on : 2017-03-07

Export document
Format :
Citation style :