In this study. new thermosetting acrylic polymer light conduits (PLCs) with
the composition of A(x)B(y)C(z) were prepared and characterized. The A and
B components were methyl methacrylate and butyl acrylate, respectively. Tr
i-funcational acrylic monomers were used for the C component. The thermal p
roperties and optical properties of the prepared PLCs are presented and com
pared with a commercially available PLC, S1. The prepared PLCs also have hi
gh numerical apertures and large diameters for illumination applications. T
he peak intensity and position can be tuned from their molecular structures
. The peak position in the optical loss spectrum is in a satisfactory agree
ment with the theoretical calculation from the FTIR spectra, which results
from the high harmonics of the C-H stretching vibration band. The peak inte
nsity of the optical loss spectrum is proportional to the C-H bond density
of the polymer core. The prepared PLCs have better thermal stability than S
1.