TG-30 can be seen forming a continuous layer on the fiber surfaces.
Fluorocarbons have low surface tension which helps them
spread on a surface easily. 2-(Perfluorohexyl)ethyl acrylate or TG-30
has a surface tension of ~18.1 dyn/cm (Sigma-Aldrich MSDS) which
makes it easy to spread and form continuous films on a surface after
polymerization. The layers of TG-30 are seen on the fiber surfaces in
Fig. 4b.