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  1. Plastic - Wikipedia

  2. List of synthetic polymers - Wikipedia

  3. A brief history of plastics, natural and synthetic - BBC News

  4. The Invention of Plastic: Tracing the Timeline of ... - Plastic

  5. Synthetic Polymers: Definition, Types, Examples, and Uses

  6. History and Future of Plastics - Science History Institute

  7. Plastic | Composition, History, Uses, Types, & Facts | Britannica

  8. All About Plastic - Xometry

  9. Synthetic Polymers: Important Types And Uses - Science Info

  10. Polyethylene (PE) | Properties, Structures, Uses, & Facts | Britannica