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
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.
引用
收藏
页码:2017 / 2023
页数:7
相关论文
共 58 条
[1]   Solvent-regulated ordering in block copolymers [J].
Alexandridis, P ;
Spontak, RJ .
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 1999, 4 (02) :130-139
[2]   NEUTRON REFLECTIVITY STUDIES OF THE SURFACE-INDUCED ORDERING OF DIBLOCK COPOLYMER FILMS [J].
ANASTASIADIS, SH ;
RUSSELL, TP ;
SATIJA, SK ;
MAJKRZAK, CF .
PHYSICAL REVIEW LETTERS, 1989, 62 (16) :1852-1855
[3]  
[Anonymous], 1988, PHASE TRANSITIONS CR
[4]   MICROPHASE SEPARATION OF A SYMMETRICAL POLY(STYRENE-B-PARAMETHYLSTYRENE) DIBLOCK COPOLYMER [J].
BARTELS, VT ;
ABETZ, V ;
MORTENSEN, K ;
STAMM, M .
EUROPHYSICS LETTERS, 1994, 27 (05) :371-376
[5]  
BATOS FS, 1990, ANNU REV PHYS CHEM, V41, P515
[6]  
Born M., 2006, PRINCIPLES OPTICS
[7]   MOTIONS OF DROPLETS ON HYDROPHOBIC MODEL SURFACES INDUCED BY THERMAL-GRADIENTS [J].
BRZOSKA, JB ;
BROCHARDWYART, F ;
RONDELEZ, F .
LANGMUIR, 1993, 9 (08) :2220-2224
[8]   SCALING THEORY FOR THE CRITICALITY OF FLUIDS BETWEEN PLATES [J].
FISHER, ME ;
NAKANISHI, H .
JOURNAL OF CHEMICAL PHYSICS, 1981, 75 (12) :5857-5863
[9]   Polymers as dewetting agents [J].
Fondecave, R ;
Wyart, FB .
MACROMOLECULES, 1998, 31 (26) :9305-9315
[10]   SURFACE ORDERING PHENOMENA IN BLOCK COPOLYMER MELTS [J].
FREDRICKSON, GH .
MACROMOLECULES, 1987, 20 (10) :2535-2542