Why are exothermic reactions particularly hazardous in polymerization?

• A. They require cooling agents
• B. They can lead to rapid energy increases
• C. They are difficult to measure
• D. They enhance stability of final products

Answer: (B)

Exothermic reactions are hazardous during polymerization primarily because they can lead to rapid energy increases. In the context of polymerization, an exothermic reaction releases heat as polymer chains form and cross-link. This heat release can accelerate the reaction even further, potentially causing a runaway reaction scenario. If the heat generated is not adequately managed or dissipated, it can lead to uncontrolled temperature rises, resulting in pressure build-up, formation of toxic or flammable gases, and even explosions.

Managing the thermal output during the polymerization process is crucial to ensuring safety. This often involves using cooling systems or additives to control the temperature and prevent the reaction from becoming uncontrollable. Thus, recognizing the nature of exothermic reactions in these processes is vital to implement the necessary safety measures effectively.