Progress and prospects in polymer science addressing plastic pollution in marine environments, including the deep-sea floor

Abstract

Biodegradable plastics are expected to mitigate marine plastic pollution, yet there remains a concern of causing similar problems to petroleum-based plastics: if biodegradable plastics degrade too slowly in marine environments, they can fragment into microplastics, much like conventional plastics. In this review, we introduce the latest studies on ocean-friendly plastics encompassing fully recyclable plastics designed for efficient breakdown in recycling plants and biodegradable plastics engineered to decompose rapidly in marine environments. We explore how advancements in polymer science can contribute to mitigating plastic pollution in the oceans, one of the most urgent environmental challenges of our time.