TY  - JOUR
AU  - Glomann, T.
AU  - Schneider, G.J.
AU  - Bras, A.R.
AU  - Pyckhout-Hintzen, W.
AU  - Wischnewski, A.
AU  - Zorn, R.
AU  - Allgaier, J.
AU  - Richter, D.
TI  - Unified Description of the Viscoelastic and Dielectric Global Chain Motion in Terms of the Tube Theory
JO  - Macromolecules
VL  - 44
SN  - 0024-9297
CY  - Washington, DC
PB  - Soc.
M1  - PreJuSER-19070
SP  - 7430 - 7437
PY  - 2011
N1  - The authors thank Dr. Lutz Willner for the synthesis of some of the polyisoprene samples. We gratefully acknowledge the funding by the Deutsche Kautschuk Gesellschaft, Frankfurt, Germany.
AB  - We present a new approach to a unified description of the dielectric end-to-end vector and the viscoelastic stress relaxation of entangled homopolymer melts in terms of the tube model. The comparison and quantitative analysis of carefully recorded viscoelastic and dielectric relaxation spectra evidence that the dielectric mode distribution is completely determined by reptation and contour length fluctuations and thus is insensitive to the CR process within experimental accuracy. We show that a joint analysis of viscoelastic and dielectric experiments allows an accurate characterization of pure single chain dynamics. The general validity of our approach is demonstrated on monodisperse polyisoprene (PI) for a wide range of different molecular weights and on poly(butylene oxide) (PBO).
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000295058400040
DO  - DOI:10.1021/ma200674z
UR  - https://juser.fz-juelich.de/record/19070
ER  -