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

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