Disclosed herein is a composition comprising 65 to 95 weight percent of a fluorinated monofunctional monomer; 5 to 35 weight percent of a fluorinated multifunctional monomer; and 0.5 to 3 weight percent of a silane coupling agent; where all weight percents are based on the total weight of the composition; where the fluorinated monofunctional monomer and the fluorinated multifunctional monomer are devoid of any trifunctional fluorocarbon moieties when they have 6 or more fluorocarbon repeat units; where the fluorocarbon repeat units are CF.sub.2 or CF moieties; and where a crosslinked composition has a shore D hardness of 56 to 85 and has a refractive index (RI) that meets the limitation of the equation RI1.368+10.8/X, where X denotes wavelength in nanometers.

Novel fluorinated compounds, their method of preparation and use are disclosed, as well as the incorporation of new and old fluorinated compounds in controlled radical polymerization processes to efficiently produce polymer compositions with unique and enhanced properties. Various cure mechanisms and types of end-uses are disclosed.

The present invention relates to a transition metal complex or oxidation-reduction polymer including a phenyl-pyridine derivative, and an electrochemical biosensor including the same. The transition metal complex according to the present invention can be easily linked to various types of polymers. In addition, the transition metal complex according to one aspect of the present invention is electrochemically and structurally stable. Furthermore, in accordance with a method for preparing the transition metal complex according to one aspect of the present invention, various types of functional groups can be easily linked to a ligand.