# What are some examples of a clear, liquid, UV photoactive polymer?

Something that is not reactive to lesser wavelengths of light, specifically IR.

• Do you want a material that does not react with IR radiation (most materials do not react with IR)? Or do you want something that is transparent to IR? – Ben Norris Mar 12 '14 at 11:03
• "Lesser wavelength" or IR: You can only have one. Do you really want a photoactive polymer or a photoinitiated polymerizaton? – Klaus-Dieter Warzecha Mar 12 '14 at 11:05

In methyl methacrylate (MMA), camphorquinone (a typical initiator) has an absorption maximum around $\lambda$ = 473 nm.