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How thermal curing of an organic paper coating changes topography, chemistry, and wettability

(2011) LANGMUIR. 27(13). p.8509-8521
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Production of imidized styrene-maleic anhydride (SMI) nanoparticles and surface interactions with different substrates
Abstract
Celluloses are preferred renewable substrates, but hydrophilicity and porosity disfavor their water resistance. We present here an ecofriendly application of imidized nanoparticles and a method to flexibly tune the surface wettability of papers. The soft nanostructured coating is sensitive to thermal curing, which affects both the surface chemistry and morphology. The thermal stability of the coating is first investigated with conventional and modulated differential scanning calorimetry, revealing influences of the imide content and an endotherm reaction below the glass transition temperature at 120–150 °C. The latter is studied in detail for an appropriate selection of the copolymer precursors. According to diffuse reflection infrared spectroscopy, Raman spectroscopy, and UV/vis spectroscopy, the endotherm corresponds to an imidization reaction. The morphology of the coatings is followed at various scale levels by contactless roughness measurements and atomic force microscopy. Finally, the experimental values are fitted to the parameters of the Wenzel wetting model, and so-called calibration curves for the relation between contact angles, surface roughness, and surface chemistry are presented. They allow the prediction of the water contact angle of coated papers from the hydrophilic to the hydrophobic range, with a maximum in hydrophobicity after increasing the imide content at 120–150 °C curing.
Keywords
COPOLYMERS, POLYMER, DROPLETS

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Citation

Please use this url to cite or link to this publication:

Chicago
Samyn, Pieter, Gustaaf Schoukens, Leo Vonck, Dirk Stanssens, and Henk Van den Abbeele. 2011. “How Thermal Curing of an Organic Paper Coating Changes Topography, Chemistry, and Wettability.” Langmuir 27 (13): 8509–8521.
APA
Samyn, Pieter, Schoukens, G., Vonck, L., Stanssens, D., & Van den Abbeele, H. (2011). How thermal curing of an organic paper coating changes topography, chemistry, and wettability. LANGMUIR, 27(13), 8509–8521.
Vancouver
1.
Samyn P, Schoukens G, Vonck L, Stanssens D, Van den Abbeele H. How thermal curing of an organic paper coating changes topography, chemistry, and wettability. LANGMUIR. 2011;27(13):8509–21.
MLA
Samyn, Pieter, Gustaaf Schoukens, Leo Vonck, et al. “How Thermal Curing of an Organic Paper Coating Changes Topography, Chemistry, and Wettability.” LANGMUIR 27.13 (2011): 8509–8521. Print.
@article{3228607,
  abstract     = {Celluloses are preferred renewable substrates, but hydrophilicity and porosity disfavor their water resistance. We present here an ecofriendly application of imidized nanoparticles and a method to flexibly tune the surface wettability of papers. The soft nanostructured coating is sensitive to thermal curing, which affects both the surface chemistry and morphology. The thermal stability of the coating is first investigated with conventional and modulated differential scanning calorimetry, revealing influences of the imide content and an endotherm reaction below the glass transition temperature at 120–150 °C. The latter is studied in detail for an appropriate selection of the copolymer precursors. According to diffuse reflection infrared spectroscopy, Raman spectroscopy, and UV/vis spectroscopy, the endotherm corresponds to an imidization reaction. The morphology of the coatings is followed at various scale levels by contactless roughness measurements and atomic force microscopy. Finally, the experimental values are fitted to the parameters of the Wenzel wetting model, and so-called calibration curves for the relation between contact angles, surface roughness, and surface chemistry are presented. They allow the prediction of the water contact angle of coated papers from the hydrophilic to the hydrophobic range, with a maximum in hydrophobicity after increasing the imide content at 120–150 °C curing.},
  author       = {Samyn, Pieter and Schoukens, Gustaaf and Vonck, Leo and Stanssens, Dirk and Van den Abbeele, Henk},
  issn         = {0743-7463},
  journal      = {LANGMUIR},
  keywords     = {COPOLYMERS,POLYMER,DROPLETS},
  language     = {eng},
  number       = {13},
  pages        = {8509--8521},
  title        = {How thermal curing of an organic paper coating changes topography, chemistry, and wettability},
  url          = {http://dx.doi.org/10.1021/la201603v},
  volume       = {27},
  year         = {2011},
}

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