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, Laura Evangelio, Célia Nicolet, Christophe Navarro, Alvaro San Paulo, Gemma Rius, 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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