Junction dynamics in telechelic hydrogen bonded polyisobutylene networks

Marcus Müller, Alexander Dardin, Ulf Seidel, Vittoria Balsamo, B. Iván, Hans W. Spiess, Reimund Stadler

Research output: Contribution to journalArticle

128 Citations (Scopus)

Abstract

4-Urazoylbenzoic acid groups are attached to the chain ends of polyisobutylene. The cooperative assembling process of these polar groups is studied by DSC and dielectric and dynamic mechanical spectroscopy. The melting of the ordered clusters occurs in the temperature range 380-390 K. Distortions within the U4A clusters (Σ process) are monitored below the "melting" temperature Tm with dielectric spectroscopy. On a larger length scale, these distortions also lead to stress relaxation which can be probed by dynamic mechanical measurements. Near Tm, the relaxation of U4A multiplets (α* relaxation) is detected with dielectric spectroscopy. In this temperature range, dynamic mechanical measurements show a transition from elastic behavior to viscous flow. The results are rationalized with molecular modeling calculations.

Original languageEnglish
Pages (from-to)2577-2583
Number of pages7
JournalMacromolecules
Volume29
Issue number7
Publication statusPublished - Mar 25 1996

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Hydrogen
Dielectric spectroscopy
Molecular modeling
Stress relaxation
Viscous flow
Melting point
Melting
Spectroscopy
Temperature
Acids
polyisobutylene

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Müller, M., Dardin, A., Seidel, U., Balsamo, V., Iván, B., Spiess, H. W., & Stadler, R. (1996). Junction dynamics in telechelic hydrogen bonded polyisobutylene networks. Macromolecules, 29(7), 2577-2583.

Junction dynamics in telechelic hydrogen bonded polyisobutylene networks. / Müller, Marcus; Dardin, Alexander; Seidel, Ulf; Balsamo, Vittoria; Iván, B.; Spiess, Hans W.; Stadler, Reimund.

In: Macromolecules, Vol. 29, No. 7, 25.03.1996, p. 2577-2583.

Research output: Contribution to journalArticle

Müller, M, Dardin, A, Seidel, U, Balsamo, V, Iván, B, Spiess, HW & Stadler, R 1996, 'Junction dynamics in telechelic hydrogen bonded polyisobutylene networks', Macromolecules, vol. 29, no. 7, pp. 2577-2583.
Müller M, Dardin A, Seidel U, Balsamo V, Iván B, Spiess HW et al. Junction dynamics in telechelic hydrogen bonded polyisobutylene networks. Macromolecules. 1996 Mar 25;29(7):2577-2583.
Müller, Marcus ; Dardin, Alexander ; Seidel, Ulf ; Balsamo, Vittoria ; Iván, B. ; Spiess, Hans W. ; Stadler, Reimund. / Junction dynamics in telechelic hydrogen bonded polyisobutylene networks. In: Macromolecules. 1996 ; Vol. 29, No. 7. pp. 2577-2583.
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