Polymeric spheres on substrates from a spin-coating process.
Formation of polymeric spheres in nanometer to sub-micrometer is achieved through a spin-coating process with polyamide (from 4,4(')-(hexafluoroisopropylidene)dianiline and 4,4(')-dicarboxydiphenylether) solutions in N,N-dimethylformamide and N,N-dimethylacetamide. The formation of polymeric spheres and their sizes are dependent on the polymer solution concentrations and the rates in spin-coating. The polymeric spheres could be obtained on various substrates including silicon, mica, and glass.
Liu
Ying-Ling
YL
Department of Chemical Engineering and R&D Center for Membrane Technology, Chung Yuan Christian University, Chungli, Taoyuan 32023, Taiwan. ylliu@cycu.edu.tw
Chen
Shi-Yi
SY
Wang
Ko-Shung
KS