Monkenbusch, M., Krutyeva, M., Pyckhout-Hintzen, W., Antonius, W., Hoevelmann, C. H., Allgaier, J., Bras, A., Farago, B., Wischnewski, A. and Richter, D. (2016). Molecular View on Supramolecular Chain and Association Dynamics. Phys. Rev. Lett., 117 (14). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

Full text not available from this repository.

Abstract

The chain and association dynamics of supramolecular polymer ensembles decisively determines their properties. Using neutron spin echo (NSE) spectroscopy we present molecular insight into the space and time evolution of this dynamics. Studying a well characterized ensemble of linearly associating telechelic poly(ethylene glycol) melts carrying triple H-bonding end groups, we show that H-bond breaking significantly impacts the mode spectrum of the associates. The breaking affects the mode contributions and not the relaxation times as was assumed previously. NSE spectra directly reveal the so far intangible H-bond lifetimes in the supramolecular melt and demonstrate that for both the microscopic and the macroscopic dynamics of the supramolecular ensemble the instantaneous average of the M-w distribution governs the system response at least as long as the Rouse picture applies.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Monkenbusch, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Krutyeva, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pyckhout-Hintzen, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Antonius, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hoevelmann, C. H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Allgaier, J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bras, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Farago, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wischnewski, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Richter, D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-261992
DOI: 10.1103/PhysRevLett.117.147802
Journal or Publication Title: Phys. Rev. Lett.
Volume: 117
Number: 14
Date: 2016
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1079-7114
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
POLYMERS; RELAXATION; STABILITYMultiple languages
Physics, MultidisciplinaryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/26199

Downloads

Downloads per month over past year

Altmetric

Export

Actions (login required)

View Item View Item