A high-precision spin-coater system has been developed for the investigation of formation mechanisms of self-assembled structures in polymer thin films. The spin coater was designed to have small axial deflection (<2.6μm at the maximum speed of 2000rmin-1) during rotation in order to maintain the relative position with respect to the incident X-ray beam, and to be compact (70mm) in height to facilitate incorporation into an in situ synchrotron radiation grazing-incidence small-angle X-ray scattering (GISAXS) system. The first results of simultaneous measurements on the morphology and film thickness of a triblock copolymer with time resolution of 64ms during thin-film formation at 2000rmin-1 provide indispensable information for understanding the vertically grown lamellar structure on the film surface.
- Grazing-incidence small-angle scattering
- Polymer thin films
- Spin coating
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)