Fluorinated dendritic or hyperbranched polymers are demonstrated for the fi
rst time to be potentially useful for optical waveguide applications, for e
xample in telecommunications. The required materials properties include the
control of the refractive index over a wide range and UV-crosslinking for
ease of processing and stable long-term mechanical properties. The authors
report the synthesis of suitable functionalized fluorinated hyperbranched p
olymers and how the above requirements can be met by functionalization at t
he periphery of the polymers.