Pattern formation in polymer films by non-linear processes

Citation
O. Karthaus et al., Pattern formation in polymer films by non-linear processes, MACRO SYMP, 160, 2000, pp. 137-142
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR SYMPOSIA
ISSN journal
1022-1360 → ACNP
Volume
160
Year of publication
2000
Pages
137 - 142
Database
ISI
SICI code
1022-1360(200010)160:<137:PFIPFB>2.0.ZU;2-C
Abstract
When a droplet of a dilute solution of a polymer is allowed to evaporate on a horizontal substrate, the polymer is deposited on the substrate as a reg ular 2 dimensional pattern of micrometer-sized polymer droplets or lines. I t was found that the mechanism of the pattern formation involves a Benard c onvection in the polymer solution and a regularly spaced fingering instabil ity at the contact line of the solution with the substrate. By using liquid crystalline polymers, a novel hierarchic pattern can be observed.