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Langmuir. 2017 Jun 13;33(23):5675-5684. doi: 10.1021/acs.langmuir.7b00968. Epub 2017 Jun 05.

Probing the Cleaning of Polymeric Coatings by Nanostructured Fluids: A QCM-D Study.

Langmuir : the ACS journal of surfaces and colloids

Martina Raudino, Nicoletta Giamblanco, Costanza Montis, Debora Berti, Giovanni Marletta, Piero Baglioni

Affiliations

  1. Department of Chemistry and CSGI, University of Florence , Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
  2. Department of Chemical Science, Laboratory for Molecular Surfaces and Nanotechnology (LAMSUN), University of Catania and CSGI , Viale A. Doria 6, 95129 Catania, Italy.

PMID: 28537736 DOI: 10.1021/acs.langmuir.7b00968

Abstract

Complex fluids composed of water, an organic solvent, and a surfactant have been recently employed as cleaning systems to remove hydrophobic materials, such as polymeric coatings, from solid surfaces. The simultaneous presence of surfactants and an organic solvent with good affinity for the polymer was proven necessary for the polymer's removal, but the comprehension of the cleaning mechanism is poorly understood. In this Article, we investigated the mechanism of removal, highlighting the specific role of each component in the interaction with the polymer film. In particular, the results from quartz crystal microbalance with dissipation monitoring (QCM-D) were compared with those obtained by using confocal microscopy to follow in situ the effect of a nanostructured fluid, i.e., a ternary formulation containing water, 2-butanone (MEK) as a good solvent for the polymer, and a nonionic surfactant (C

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