in the art can readily imagine many additional examples that fall within the scope of the currently preferred embodiments as taught in the detailed description of the invention section persons skilled in the art can furthermore also readily imagine many alternative embodiments that fall within the full scope of the invention as taught in the summary of the invention section the thermoset matrix was prepared from a formulation containing 10 dvb by weight of the starting monomer mixture the dvb had been purchased as a mixture where only 63 by weight consisted of dvb the actual polymerizable monomer mixture used in preparing the thermoset matrix consisted of roughly 84 365 s 5 635 evb and 10 dvb by weight carbon black monarch 280 was incorporated into the particles at 0 5 by weight via dispersion in the organic phase of the formulation prior to polymerization since the specific gravity of carbon black is roughly 1 8 while the specific gravity of the polymer is roughly 1 04 the amount of carbon black incorporated into the particles was roughly 0 29 by volume suspension polymerization was performed in a pilot plant reactor via rapid rate polymerization as taught by albright u s pat no 6 248 838 which is incorporated herein by reference in applying this method the u201c dual initiator u201d approach wherein two initiators with different thermal stabilities are used to help drive the reaction of dvb further towards completion was utilized the required tests only require a small quantity of particles the use of a liquid medium such as the reactor fluid is unnecessary for the heat.