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Evolution in surface morphology during rapid microwave annealing of PS-b-PMMA thin films

Publication ,  Journal Article
Qiang, Z; Ye, C; Lin, K; Becker, ML; Cavicchi, KA; Vogt, BD
Published in: Journal of Polymer Science, Part B: Polymer Physics
August 1, 2016

Microwave annealing enables rapid (60 s) ordering and orientation of block copolymer films. The developed morphology in polystyrene-block-poly(methyl methacrylate) (PS-b-PMMA) thin films depends on details of the heating rate that is controlled by microwave output energy as well as the sample location in the microwave. Over a wide heating rate (1.1–2.7 °C/s), perpendicular orientation of the cylindrical mesostructure at the surface is >50% after 60 s, but goes through a maximum at 1.8 °C/s leading to approximately 97% perpendicular cylinders at the surface. The propagation of this perpendicular surface morphology through the film thickness is also dependent upon the microwave annealing conditions. The surface structure evolves with the microwave annealing time from imperfect ordering to perpendicular cylinders to parallel cylinders as the annealing time increases. This work demonstrates the importance of controlling the heating rate during microwave annealing, which will be critical for optimizing microwave conditions for directed self-assembly. © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016, 54, 1499–1506.

Duke Scholars

Published In

Journal of Polymer Science, Part B: Polymer Physics

DOI

EISSN

1099-0488

ISSN

0887-6266

Publication Date

August 1, 2016

Volume

54

Issue

15

Start / End Page

1499 / 1506

Related Subject Headings

  • Polymers
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences
 

Citation

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ICMJE
MLA
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Qiang, Z., Ye, C., Lin, K., Becker, M. L., Cavicchi, K. A., & Vogt, B. D. (2016). Evolution in surface morphology during rapid microwave annealing of PS-b-PMMA thin films. Journal of Polymer Science, Part B: Polymer Physics, 54(15), 1499–1506. https://doi.org/10.1002/polb.24043
Qiang, Z., C. Ye, K. Lin, M. L. Becker, K. A. Cavicchi, and B. D. Vogt. “Evolution in surface morphology during rapid microwave annealing of PS-b-PMMA thin films.” Journal of Polymer Science, Part B: Polymer Physics 54, no. 15 (August 1, 2016): 1499–1506. https://doi.org/10.1002/polb.24043.
Qiang Z, Ye C, Lin K, Becker ML, Cavicchi KA, Vogt BD. Evolution in surface morphology during rapid microwave annealing of PS-b-PMMA thin films. Journal of Polymer Science, Part B: Polymer Physics. 2016 Aug 1;54(15):1499–506.
Qiang, Z., et al. “Evolution in surface morphology during rapid microwave annealing of PS-b-PMMA thin films.” Journal of Polymer Science, Part B: Polymer Physics, vol. 54, no. 15, Aug. 2016, pp. 1499–506. Scopus, doi:10.1002/polb.24043.
Qiang Z, Ye C, Lin K, Becker ML, Cavicchi KA, Vogt BD. Evolution in surface morphology during rapid microwave annealing of PS-b-PMMA thin films. Journal of Polymer Science, Part B: Polymer Physics. 2016 Aug 1;54(15):1499–1506.
Journal cover image

Published In

Journal of Polymer Science, Part B: Polymer Physics

DOI

EISSN

1099-0488

ISSN

0887-6266

Publication Date

August 1, 2016

Volume

54

Issue

15

Start / End Page

1499 / 1506

Related Subject Headings

  • Polymers
  • 09 Engineering
  • 03 Chemical Sciences
  • 02 Physical Sciences