Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für Polymerforschung     Collection: MPI Polymerforschung     Display Documents



  history
ID: 28336.0, MPI für Polymerforschung / MPI Polymerforschung
Water induced dewetting of ultrathin polystyrene films on hydrophilic surfaces
Authors:Bonaccurso, E.; Butt, Hans-Jürgen; Franz, V.; Graf, Karlheinz; Kappl, Michael; Loi, S.; Niesenhaus, B.; Chemnitz, S.; Böhm, M.; Petrova, B.; Jonas, Ulrich; Spiess, Hans Wolfgang
Language:English
Date of Publication (YYYY-MM-DD):2002-10-15
Title of Journal:Langmuir
Journal Abbrev.:Langmuir
Volume:18
Issue / Number:21
Start Page:8056
End Page:8061
Review Status:No review
Audience:Not Specified
Abstract / Description:The wetting of ultrathin films of polystyrene on the hydrophilic surfaces of mica and silicon oxide was studied by atomic force microscopy. After annealing, the surfaces were covered with a homogeneous, continuous polystyrene film of roughly 1 nm thickness. On top of this film, polystyrene droplets with microscopic contact angles of 7degrees-16degrees were observed. After exposure to an oversaturated water vapor, the continuous polystyrene film disintegrates and dewets the surfaces. Polystyrene structures on silicon oxide indicate a homogeneous dewetting process starting from few nucleation sites. On mica the density of nucleation sites for water is much higher and the polystyrene dewets the surface in an inhomogeneous process. The structural changes observed imply that ultrathin polystyrene films are highly mobile in the presence of water.
Comment of the Author/Creator:Date: 2002, OCT 15
External Publication Status:published
Document Type:Article
Affiliations:MPI für Polymerforschung
External Affiliations:Univ Siegen, D-27068 Siegen, Germany; Univ Chem Technol & Met, BU-1756 Sofia, Bulgaria
Identifiers:ISI:000178589700045 [ID No:1]
ISSN:0743-7463 [ID No:2]
LOCALID:P-02-132
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.