3. Average molecular weight on the order of 104 105 g/mol were obtained, which are – typical for polymers. 4. The 1.6 PDI of the polystyrene sample in this experiment falls in the range expected for free radical polymerization (1.5<PDI<2.0). 6. ACKNOWLEDGMENTS The data was taken from a Mat E 453 group from the previous year. 7. REFERENCES 1. Iowa State Polymer Composites Research Group, Gel Permeation Chromatography. 15 Jan. 2013. Web. 2. Mendoza, J. D., Iowa State University. Lab 2: GPC, 3. Phenomenex, 7 May 2014. Web. Size Exclusion Chromatography (SEC). 4. Mendoza, J. D., Iowa State University. Mat E 453 Lecture,
3. Average molecular weight on the order of 104 – 105 g/mol were obtained, which are typical for polymers. 4. The 1.6 PDI of the polystyrene sample in this experiment falls in the range expected for free radical polymerization (1.5<PDI<2.0). 6. ACKNOWLEDGMENTS The data was taken from a Mat E 453 group from the previous year. 7. REFERENCES 1. Gel Permeation Chromatography. Iowa State Polymer Composites Research Group, 15 Jan. 2013. Web. 2. Mendoza, J. D., Lab 2: GPC, Iowa State University. 3. Size Exclusion Chromatography (SEC). Phenomenex, 7 May 2014. Web. 4. Mendoza, J. D., Mat E 453 Lecture, Iowa State University.