11 September 2015 Nanomechanical properties of solvent cast polystyrene and poly(methyl methacrylate) polymer blends and self-assembled block copolymers
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Abstract
The nanomechanical properties of solvent-cast polymer thin films have been investigated using PeakForce™ Quantitative Nanomechanical Mapping. The samples consisted of films of polystyrene (PS) and poly(methyl methacrylate) (PMMA) obtained after the dewetting of toluene solution on a polymeric brush layer. Additionally, we have probed the mechanical properties of poly(styrene-b-methyl methacrylate) block copolymers (BCP) as randomly oriented thin films. The probed films have a critical thickness <50  nm and present features to be resolved <42  nm. The Young’s modulus values obtained through several nanoindentation experiments present a good agreement with previous literature, suggesting that the PeakForce™ technique could be crucial for BCP investigations, e.g., as a predictor of the mechanical stability of the different phases.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Matteo Lorenzoni, Matteo Lorenzoni, Laura Evangelio, Laura Evangelio, Célia Nicolet, Célia Nicolet, Christophe Navarro, Christophe Navarro, Alvaro San Paulo, Alvaro San Paulo, Gemma Rius, Gemma Rius, Francesc Pérez-Murano, Francesc Pérez-Murano, } "Nanomechanical properties of solvent cast polystyrene and poly(methyl methacrylate) polymer blends and self-assembled block copolymers," Journal of Micro/Nanolithography, MEMS, and MOEMS 14(3), 033509 (11 September 2015). https://doi.org/10.1117/1.JMM.14.3.033509 . Submission:
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