| Issue |
Europhys. Lett.
Volume 36, Number 4, November I 1996
|
|
|---|---|---|
| Page(s) | 289 - 294 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1996-00224-x | |
| Published online | 01 September 2002 | |
Identification of an intermediate-segregation regime in a diblock copolymer system
1
IMFUFA (Institute of Mathematics and Physics),
Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
2
Department of Solid State Physics, Risø National Laboratory,
P.O. Box 49, DK-4000 Roskilde, Denmark
Received:
8
July
1996
Accepted:
19
September
1996
We have studied the scaling behavior of the bulk structure in
a symmetric diblock copolymer system using small-angle scattering.
We have identified a crossover between the inter mediate-segregation regime
and the strong-segregation limit at 
.
In the inter mediate-segregation regime (
),
the characteristic length scale, D,
scales with chain length, N, as 
.
In the strong-segregation limit (
), the scaling behavior
is found. The observed crossover is consistent with
theoretical predictions.
PACS: 64.60.Cn – Order-disorder and statistical mechanics of model systems / 61.41.+e – Polymers, elastomers, and plastics / 61.10.Eq – X-ray scattering (including small-angle scattering)
© EDP Sciences, 1996
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