| Issue |
Europhys. Lett.
Volume 42, Number 4, May II 1998
|
|
|---|---|---|
| Page(s) | 425 - 430 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1998-00266-0 | |
| Published online | 01 September 2002 | |
Characterization of two new stable block copolymer mesophases by synchrotron small-angle scattering
Max-Planck-Institut für Kolloid- und Grenzflächenforschung,
Kantstr. 55, D-14513 Teltow-Seehof, Germany
Received:
9
January
1998
Accepted:
22
March
1998
Block copolymers made of polystyrene and fluorinated blocks represent a new class of polymers with a very strong incompatibility between the two blocks. They exhibit new stable block copolymer mesophases which are not considered in the phase diagrams of diblock copolymers in the strong and super-strong segregation regime. The solid-state structures of two polymers with different compositions are characterized by synchrotron small-angle X-ray scattering and transmission electron microscopy, thus proving the existence of a quadratically perforated layer phase and a 2D phase of sanidically degenerated cylinders.
PACS: 61.10.Eq – X-ray scattering (including small-angle scattering) / 61.82.Pv – Polymers, organic compounds
© EDP Sciences, 1998
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