Reactions designed to produce these molecules can exhibit a dangerous thermal runaway in autoacceleration. Titanium or aluminum-based catalysts (10[1])for making these molecules can control whether they are isotactic (“eye-so-tactic”), syndiotactic (10[2])(“sin-dee-oh-tactic”), or atactic (“ay-tactic”). These molecules have their dispersity index measured with dynamic light scattering. These molecules are the targeted product of reactions that contain initiation, propagation, and termination (-5[2])steps, and proceed in a “chain-growth” manner. Common examples of these molecules used in clothing include Teflon and nylon. For 10 points, name these macromolecules that consist of many repeating monomers. (10[1])■END■ (10[1])