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Effect of Chemical Confinement on the mechanical relaxation spectra of poly(ethene-co-methacrylic acid) copolymers

  • Jörg Hachenberg , Björn Steisel , Undrakh Nergui , Dennis Bedorf , Michael Buback and Konrad Samwer
Published/Copyright: May 23, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 99 Issue 5

Abstract

The concept of Chemical Confinement is introduced to describe a relaxation mode occurring in copolymers with a non-random distribution of monomer units. Poly(ethene-co-methacrylic acid) copolymer turns out to be an appropriate test system. By suitable selection of the polymerization conditions, the randomness of the distribution of methacrylic acid units along the polymer backbone may be tuned without significantly affecting the degree of polymerization and the methacrylic content of the copolymer. By interaction via hydrogen bonds, associating methacrylic units can confine the relaxation mode of chain segments positioned in between two such associating sites. Variation of the methacrylic content results in a shift of the relaxation mode. Mechanical spectroscopy and differential scanning calorimetry are used to validate the model of Chemical Confinement.

Keywords: Mechanical spectroscopy; Polymers; Relaxation
* Correspondence address, Prof. Dr. Konrad Samwer, I. Physikalisches Institut, Universität Göttingen, Friedrich-Hund Platz 1, 37077 Göttingen, Germany, Tel.: 495 5139 7602, Fax: 4955 1391 2229, E-mail:

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Received: 2008-1-25
Accepted: 2008-2-23
Published Online: 2013-05-23
Published in Print: 2008-05-01

© 2008, Carl Hanser Verlag, München

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  2. Contents
  3. Editorial
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  5. Review
  6. Laser-assisted atom probe tomography and nanosciences
  7. Heusler films and multilayers: X-ray resonant magnetic scattering and polarized neutron reflectivity studies on the relation between structure and magnetism
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  9. Basic
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  11. The decomposition reaction of lithium amide studied by anelastic spectroscopy and thermogravimetry
  12. Migration of faceted high-angle grain boundaries in Zn
  13. EELS analysis of internal metal – oxide interfaces
  14. Effect of Chemical Confinement on the mechanical relaxation spectra of poly(ethene-co-methacrylic acid) copolymers
  15. Applied
  16. Properties of hydrogen absorption by nano-structured FeTi alloys
  17. A subnanoscale study of the nucleation, growth, and coarsening kinetics of Cu-rich precipitates in a multicomponent Fe – Cu based steel
  18. Hydrogen absorption in 3.1 nanometre sized palladium samples: does structure matter?
  19. Ultrasonic study of short-range hydrogen ordering in Pd-hydride
  20. Homogeneity of mechanically alloyed nano-crystalline Fe – Cu-powders
  21. Formation of nickel nanoparticles in nickel – ceramic anodes during operation of solid-oxide fuel cells
  22. Characterisation of complex hydrides synthesised or modified by ball milling
  23. On the small scale character of the stress and hydrogen concentration fields at the tip of an axial crack in steel pipeline: effect of hydrogen-induced softening on void growth
  24. Notifications
  25. DGM News
https://doi.org/10.3139/146.101666
Keywords for this article
Mechanical spectroscopy; Polymers; Relaxation

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Prof. Dr. Reiner Kirchheim
  5. Review
  6. Laser-assisted atom probe tomography and nanosciences
  7. Heusler films and multilayers: X-ray resonant magnetic scattering and polarized neutron reflectivity studies on the relation between structure and magnetism
  8. Perovskite-type hydrides – synthesis, structures and properties
  9. Basic
  10. Interface width of immiscible layered elements
  11. The decomposition reaction of lithium amide studied by anelastic spectroscopy and thermogravimetry
  12. Migration of faceted high-angle grain boundaries in Zn
  13. EELS analysis of internal metal – oxide interfaces
  14. Effect of Chemical Confinement on the mechanical relaxation spectra of poly(ethene-co-methacrylic acid) copolymers
  15. Applied
  16. Properties of hydrogen absorption by nano-structured FeTi alloys
  17. A subnanoscale study of the nucleation, growth, and coarsening kinetics of Cu-rich precipitates in a multicomponent Fe – Cu based steel
  18. Hydrogen absorption in 3.1 nanometre sized palladium samples: does structure matter?
  19. Ultrasonic study of short-range hydrogen ordering in Pd-hydride
  20. Homogeneity of mechanically alloyed nano-crystalline Fe – Cu-powders
  21. Formation of nickel nanoparticles in nickel – ceramic anodes during operation of solid-oxide fuel cells
  22. Characterisation of complex hydrides synthesised or modified by ball milling
  23. On the small scale character of the stress and hydrogen concentration fields at the tip of an axial crack in steel pipeline: effect of hydrogen-induced softening on void growth
  24. Notifications
  25. DGM News
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