||Synthetic polymer foams are used in the everyday life, for example, foam mattress, soundproof matters, and so on. However, harmful gases from polymer foams can cause respiratory diseases and bad smell. As the interest for environmental pollution increases, the request increases to reduce the harmful gases released from polymer foams. Here, we introduce a new synthetic process of polymer foams to reduce ammonia gases. For the environment friendly foam, polyacrylic acid and poly(4-styrenesulfonic acid) are used as deodorant for the ammonia gas. The polymeric acids were mixed with polyvinyl chloride sol and azodicarbonamide foaming agents. From the degassing test, the reduction rate of the ammonia gas was increased over than 90% compared to the reference. In addition, the new foams mixed with polymeric acids show similar specific gravity and color.