Applied Physics A

, Volume 79, Issue 4–6, pp 1295–1297 | Cite as

Variation of the mechanical properties of pulsed laser deposited PMMA films during annealing

  • E. Süske
  • T. Scharf
  • P. Schaaf
  • E. Panchenko
  • D. Nelke
  • M. Buback
  • H. Kijewski
  • H.-U. Krebs
Article

Abstract

The structural and mechanical properties of polymethyl methacrylate (PMMA) thin films produced by pulsed laser deposition in ultra-high vacuum were investigated by infrared spectroscopy, electron microscopy, size-exclusion chromatography and microhardness measurements. After preparation, the film hardness and elastic modulus are found to be increased. This is caused by a reduced chain length of the polymer film to values of 5800 g/mol and by cross links of an amount of about 20% of the polymer, while the chemical structure of the deposited films is comparable to the target material. During annealing, relaxation processes lead to a reduction of the film hardness, without changing the cross-linked part in the samples.

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Copyright information

© Springer-Verlag 2004

Authors and Affiliations

  • E. Süske
    • 1
  • T. Scharf
    • 1
  • P. Schaaf
    • 2
  • E. Panchenko
    • 3
  • D. Nelke
    • 3
  • M. Buback
    • 3
  • H. Kijewski
    • 4
  • H.-U. Krebs
    • 1
  1. 1.Institut für MaterialphysikUniversität GöttingenGöttingenGermany
  2. 2.II. Physikalisches InstitutUniversität GöttingenGöttingenGermany
  3. 3.Institut für Physikalische ChemieUniversität GöttingenGöttingenGermany
  4. 4.Institut für RechtsmedizinUniversität GöttingenGöttingenGermany

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