27 March 2015 Nanomechanical properties of solvent cast PS and PMMA polymer blends and block co-polymers
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The nanomechanical properties of solvent cast polymer thin films have been investigated using PeakForceTM quantitative nanomechanical mapping. The samples consisted in films of polystyrene and poly(methyl methacrylate) obtained after dewetting of toluene solution on a polymeric brush layer. As a second step, we have probed the mechanical properties of Poly(styrenen- methilmethacrylate) (PS-b-PMMA) block co-polymers (BCP) thin films randomly oriented. The measured films has a critical thickness below 50 nm and present features to be resolved of less than 42 nm. Measured surface elastic modulus obtained present a good agreement with previous literature and show how PeakForce technique could be crucial to BCP investigation predicting the mechanical stability of the different phases.
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Matteo Lorenzoni, Matteo Lorenzoni, Laura Evangelio, Laura Evangelio, Célia Nicolet, Célia Nicolet, Christophe Navarro, Christophe Navarro, Alvaro San Paulo, Alvaro San Paulo, Francesc Perez Murano, Francesc Perez Murano, "Nanomechanical properties of solvent cast PS and PMMA polymer blends and block co-polymers", Proc. SPIE 9423, Alternative Lithographic Technologies VII, 942325 (27 March 2015); doi: 10.1117/12.2085829; https://doi.org/10.1117/12.2085829

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