Each pair of groups went to their assigned rooms and met with a postdoctoral researcher or graduate student to discuss the proper procedures of the experiment, specific safety measures, and the equipment utilized. On the first day, students prepared polystyrene solutions of each small group's concentration (5-27.5mg/mL) in toluene and cleaved silicon wafers into one cm by one cm squares, all of which was completed in four hours. On the second day, the students spent 3 hours performing the tests mentioned in the equipment section, such as UV/Vis and DSC. After, samples were spin casted onto the silicon wafers at 2500 rpm for 30 seconds each. Ellipsometry was performed on the samples to determine thickness of the spin casted polystyrene concentrations. Based on thickness, molecular weight of the different polystyrene types was calculated, further elaborated on in the results section.