Sector Spin Coating for Fast Preparation of Polymer Libraries
-
de Gans, Berend-Jan; Wijnans, Sanne; Wouters, Daan; Schubert, Ulrich S.
- Abstract:
- The feasibility of sector spin coating (or combinatorial spin-coating) is demonstrated (i.e., spin coating of
various samples onto one single substrate using a metal template to divide the substrate into sectors). Film
thickness increases in an angular direction against the sense of rotation. In the radial direction, the film
thickness is constant within 2%. A library of 8 poly(methyl methacrylate)/polystyrene-blends with varying
composition was spin coated and subsequently analyzed using automated atomic force microscopy: 24
measurements could be performed within 72 min. The contact angles of a library of 16 polyoxazoline diblock
copolymers were measured using one substrate with 16 spin-coated sectors. Forty-eight measurements could
be performed within 50 min. On the basis of the surface energies calculated using the Owens-Wendt-
Rath-Kaeble method, the library can be divided into three groups of polymers: those containing a dispersive
nonyloxazoline block, those containing a polar phenyloxazoline block, and those containing neither.
- Year:
- 2005
- Type of Publication:
- Article
- Journal:
- Journal of Combinatorial Chemistry
- Volume:
- 7
- Pages:
- 952 - 957