Pressure-induced dynamic homogeneity in an athermal diblock copolymer melt

Authors
Floudas, G Fytas, G Reisinger, T Wegner, G
Citation
G. Floudas et al., Pressure-induced dynamic homogeneity in an athermal diblock copolymer melt, J CHEM PHYS, 111(20), 1999, pp. 9129-9132
Citations number
29
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CHEMICAL PHYSICS
ISSN journal
00219606 → ACNP
Volume
111
Issue
20
Year of publication
1999
Pages
9129 - 9132
Database
ISI
SICI code
0021-9606(19991122)111:20<9129:PDHIAA>2.0.ZU;2-O
Abstract
We report on the effect of pressure on the dual segmental relaxation of an athermal poly(isoprene-b-vinylethylene) (PI-PVE) diblock copolymer melt usi ng dielectric spectroscopy. The quantity (partial derivative log tau/partia l derivative P)(T) is employed as a probe of the state of dynamic miscibili ty in the system. We find that pressure, unlike temperature, induces dynami c homogeneity. (C) 1999 American Institute of Physics. [S0021-9606(99)52244 -7].