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Interfacial and Substrate Effects on Local Elastic Properties of Polymers Using Coupled Experiments and Modeling of Nanoindentation

Publication ,  Journal Article
Watcharotone, S; Wood, CD; Friedrich, R; Chen, X; Qiao, R; Putz, K; Brinson, LC
Published in: Advanced Engineering Materials
May 2011

The mechanical properties of polymers near interfaces are important in a number of different fields. For almost two decades, the local dynamics of thin polymer films have been studied in great detail. However, development of an understanding of local mechanical properties has been hindered by the necessary proximity of stiff substrates: mechanical measurements are confounded by interaction with the substrate, convoluting polymer, and substrate properties. In this paper, local elastic properties of thin polymer films near interfaces are directly probed for the first time via nanoindentation experiments on thin films coupled with finite element modeling. A comprehensive set of experimental and numerical modeling results are presented for poly(methyl methacrylate) (PMMA) revealing separately the effects of substrate and interphase polymer. Results indicate the attractive surface significantly affects the properties up to hundreds of nanometers. This new, direct approach to measure local mechanical properties provides new fundamental understanding of interfacial and small‐scale behaviors in polymers and soft matter for application advances in nanocomposites, microelectronics, and biopolymers.

Duke Scholars

Published In

Advanced Engineering Materials

DOI

EISSN

1527-2648

ISSN

1438-1656

Publication Date

May 2011

Volume

13

Issue

5

Start / End Page

400 / 404

Publisher

Wiley

Related Subject Headings

  • Materials
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 4005 Civil engineering
  • 0912 Materials Engineering
 

Citation

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MLA
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Watcharotone, S., Wood, C. D., Friedrich, R., Chen, X., Qiao, R., Putz, K., & Brinson, L. C. (2011). Interfacial and Substrate Effects on Local Elastic Properties of Polymers Using Coupled Experiments and Modeling of Nanoindentation. Advanced Engineering Materials, 13(5), 400–404. https://doi.org/10.1002/adem.201000277
Watcharotone, Supinda, Charles D. Wood, Robert Friedrich, Xinqi Chen, Rui Qiao, Karl Putz, and L Catherine Brinson. “Interfacial and Substrate Effects on Local Elastic Properties of Polymers Using Coupled Experiments and Modeling of Nanoindentation.” Advanced Engineering Materials 13, no. 5 (May 2011): 400–404. https://doi.org/10.1002/adem.201000277.
Watcharotone S, Wood CD, Friedrich R, Chen X, Qiao R, Putz K, et al. Interfacial and Substrate Effects on Local Elastic Properties of Polymers Using Coupled Experiments and Modeling of Nanoindentation. Advanced Engineering Materials. 2011 May;13(5):400–4.
Watcharotone, Supinda, et al. “Interfacial and Substrate Effects on Local Elastic Properties of Polymers Using Coupled Experiments and Modeling of Nanoindentation.” Advanced Engineering Materials, vol. 13, no. 5, Wiley, May 2011, pp. 400–04. Crossref, doi:10.1002/adem.201000277.
Watcharotone S, Wood CD, Friedrich R, Chen X, Qiao R, Putz K, Brinson LC. Interfacial and Substrate Effects on Local Elastic Properties of Polymers Using Coupled Experiments and Modeling of Nanoindentation. Advanced Engineering Materials. Wiley; 2011 May;13(5):400–404.
Journal cover image

Published In

Advanced Engineering Materials

DOI

EISSN

1527-2648

ISSN

1438-1656

Publication Date

May 2011

Volume

13

Issue

5

Start / End Page

400 / 404

Publisher

Wiley

Related Subject Headings

  • Materials
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 4005 Civil engineering
  • 0912 Materials Engineering