Dewetting of thin diblock copolymer films:: Spinodal dewetting kinetics

被引：41
|
作者：
Müller-Buschbaum, P
Gutmann, JS
Lorenz-Haas, C
Wunnicke, O
Stamm, M
Petry, W
机构：
[1] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany
[2] Inst Polymerforsch Dresden EV, D-01069 Dresden, Germany
[3] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
来源：
MACROMOLECULES | 2002年 / 35卷 / 06期
关键词：
D O I：
10.1021/ma010192y
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The stability of thin diblock copolymer films with respect to the annealing above the microphase separation temperature is investigated on long time scales and at different film thicknesses. Poly(styrene-block-p-methylstyrene) diblock copolymer films on top of silicon substrates are examined with scanning force microscopy and off-specular X-ray scattering. At film thickness below the lamellar spacing of the bulk material a dewetting is observed. The kinetics of the film destabilization are explainable within a spinodal dewetting model. The observed dewetting structures belong to a wet dewetting. In the case of film thicknesses which enable the buildup of a few lamellae no sign of instability was detected.
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页码：2017 / 2023
页数：7
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