TY  - JOUR
AU  - Frielinghaus, H.
AU  - Hermsdorf, N.
AU  - Sigel, R.
AU  - Almdal, K.
AU  - Mortensen, K.
AU  - Hamley, I. W.
AU  - Messé, L.
AU  - Corvazier, M. F.
AU  - Ryan, A. J.
AU  - van Dusschoten, D.
AU  - Wilhelm, M.
AU  - Floudas, G.
AU  - Fytas, G.
TI  - Blends of AB/BC diblock copolymers with a large interaction parameter Chi
JO  - Macromolecules
VL  - 34
SN  - 0024-9297
CY  - Washington, DC
PB  - Soc.
M1  - PreJuSER-34172
SP  - 4907 - 4916
PY  - 2001
N1  - Record converted from VDB: 12.11.2012
AB  - Blends of poly(styrene)-b-poly(isoprene) (PS-PI) and poly( isoprene)-b-poly(ethylene oxide) (PI-PEO) were investigated by small-angle X-ray scattering, photon correlation spectroscopy, light microscopy, and rheology. Blends were prepared in which both diblocks had the same PI composition, f, and were investigated as a function of blend composition, Phi. We generally found a disordered one-phase region at high temperatures and two macrophase-separated, ordered phases at low temperatures. At low temperatures the only appreciable miscibility was found for f = 0.7 in the PI-PEO-rich phase. At intermediate temperatures we generally observed macrophase separation before microphase separation upon cooling. The macrophase separation boundary compared to the microphase boundary is lowered upon increasing f. For f = 0.6 and 0.7 we observe an adjustment of the d spacing of the macrophase-separated, ordered phases. The general trend of the phase behavior is described by a theory using the random phase approximation.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000169564100036
DO  - DOI:10.1021/ma010233q
UR  - https://juser.fz-juelich.de/record/34172
ER  -