Mesoscopic Patterning in thin polymer films formed under the fast dip-coating process

被引：58

作者：

Bormashenko, E ^{[1
]}

Pogreb, R

Stanevsky, O

Bormashenko, Y

Stein, T

Gaisin, VZ

Cohen, R

Gendelman, OV

机构：

[1] Coll Judea & Samaria, Lab Polymer Mat, IL-44837 Ariel, Israel

[2] Technion Israel Inst Technol, Fac Mech Engn, IL-32000 Haifa, Israel

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2005年 / 290卷 / 02期

关键词：

dip-coating; instability; mesoscopic; self-organization; surfaces;

D O I：

10.1002/mame.200400217

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mesoscopically ordered self-assembled polystyrene, polycarbonate and poly(methyl methacrylate) films were obtained when polymer solutions were deposited on vertical plates and dried with hot air. It was shown that characteristic size (approximate to 50 mum) of the mesoscopic cell is practically insensitive to the polymer or substrate kind, while the thickness of the substrate plays a decisive role in the mesoscopic patterning. Junction angles of 120 and 90degrees were observed. Marangoni instability plays an important role in the cell's structure formation. A semi-quantitative model explaining the phenomenon of mesoscopic cell formation is proposed.

引用

页码：114 / 121

页数：8

共 30 条

[1]

BARNES MD, 2002, MATER TODAY, V5, P20

[2]

BRUNISMA R, 1994, PHYS REV E, V49, P554

[3] Intermolecular interactions of liquid dichloromethane and equilibrium properties of liquid-vapor and liquid-liquid interfaces: A molecular dynamics study [J].

Dang, LX .

JOURNAL OF CHEMICAL PHYSICS, 1999, 110 (20) :10113-10122

[4] Solvent evaporation of spin cast films: "crust" effects [J].

de Gennes, PG .

EUROPEAN PHYSICAL JOURNAL E, 2002, 7 (01) :31-34

[5] Instabilities during the evaporation of a film: Non-glassy polymer plus volatile solvent [J].

de Gennes, PG .

EUROPEAN PHYSICAL JOURNAL E, 2001, 6 (05) :421-424

[6] 3D numerical simulation of regular structure formation in a locally heated falling film [J].

Frank, AM .

EUROPEAN JOURNAL OF MECHANICS B-FLUIDS, 2003, 22 (05) :445-471

[7] THE TEMPERATURE AND DENSITY DEPENDENCES OF THE SELF-DIFFUSION COEFFICIENT AND THE SHEAR VISCOSITY OF LIQUID TRICHLOROMETHANE [J].

HARRIS, KR ;

LAM, HN ;

RAEDT, E ;

EASTEAL, AJ ;

PRICE, WE ;

WOOLF, LA .

MOLECULAR PHYSICS, 1990, 71 (06) :1205-1221

[8]

Johns L. E., 2002, INTERFACIAL INSTABIL

[9] Water-assisted formation of micrometer-size honeycomb patterns of polymers [J].

Karthaus, O ;

Maruyama, N ;

Cieren, X ;

Shimomura, M ;

Hasegawa, H ;

Hashimoto, T .

LANGMUIR, 2000, 16 (15) :6071-6076

[10] THEORETICAL-STUDY OF THE TRANSPORT PROCESSES OCCURRING DURING THE EVAPORATION STEP IN ASYMMETRIC MEMBRANE CASTING [J].

KRANTZ, WB ;

RAY, RJ ;

SANI, RL ;

GLEASON, KJ .

JOURNAL OF MEMBRANE SCIENCE, 1986, 29 (01) :11-36

← 1 2 3 →