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Spectroscopic Investigations on the Effect of Proton Bombardment of Polyimide

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Abstract

The effect of the radiation component of the space environment on polyimide films is reviewed. Experimental data obtained by electron spin resonance and dynamical mechanical analysis proved that the ionizing radiation generates free radicals with a long lifetime through a dominant chain scission mechanism. The radiation-induced shift of the glass transition of polyimide towards lower values confirms the decrease of the average molecular mass of the polymer during irradiation. The importance of polyimide for space exploration is critically analyzed.

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Authors and Affiliations

  1. NASA MSFC Marshall Space Flight Center, Huntsville, Alabama, USA

    David L Edwards & Mary Nehls

  2. NASA Glenn, Cleveland, Ohio, USA

    Kim K de Groh, Sharon K Miller & Bruce Banks

  3. University of Tennessee, Knoxville, Tennessee, USA

    Chris Stephens & Roberto Benson

  4. University of la Coruna, Ferol, Spain

    Ramon Artiaga

  5. Indiana University, Bloomington, IN, USA

    Jeffrey M. Zaleski & Mircea Chipara

Authors
  1. David L Edwards
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  2. Kim K de Groh
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  3. Mary Nehls
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  4. Sharon K Miller
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  5. Bruce Banks
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  6. Chris Stephens
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  7. Ramon Artiaga
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  8. Roberto Benson
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  9. S. Balascuta
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  10. Jeffrey M. Zaleski
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  11. Mircea Chipara
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Edwards, D.L., de Groh, K.K., Nehls, M. et al. Spectroscopic Investigations on the Effect of Proton Bombardment of Polyimide. MRS Online Proceedings Library 851, 523–528 (2004). https://doi.org/10.1557/PROC-851-NN9.6

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  • DOI: https://doi.org/10.1557/PROC-851-NN9.6

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