Volume 61, Number 5, March 2003
|Page(s)||639 - 645|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 February 2003|
Multiple-scaled polymer surfaces investigated with micro-focus grazing-incidence small-angle X-ray scattering
TU München, Physik-Department, LS E13 James-Franck-Str. 1, 85747 Garching, Germany
2 ESRF - BP 220, 38043 Grenoble Cedex 09, France
Accepted: 20 December 2002
We show that a position-sensitive sample surface information of multiple-scaled polymer films is successfully addressed with micro-focus grazing-incidence small-angle X-ray scattering (μ-GISAXS). From the analysis of the diffuse scattering without further model assumptions the length scale of the heterogeneous structures is determinable. The method is illustrated by an example of two-step dewetted polystyrene (PS) films exhibiting droplets on a nano scale in coexistence with mesoscopic drops. The results are compared to scanning force microscopy measurements. As compared to the conventional transmission geometry using the same micro-focus optics the resolvable length scale is increased by one order of magnitude.
PACS: 61.10.Eq – X-ray scattering (including small-angle scattering) / 61.41.+e – Polymers, elastomers, and plastics / 68.55.Jk – Structure and morphology; thickness; crystalline orientation and texture
© EDP Sciences, 2003
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