Polymer formation is very difficult to control. Our reaction contains a chemical used to help terminate the ends of some of the polymers in order to increase the overall number of strands in our product. Which of the following reactants helps to control the lengths of the polymers by blocking an active site from further polymerization?
A. Sodium acetate
B. Glycerol
C. Phthalic anhydride
D. Ethylene glycol