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Difference Between Natural Polymers and Synthetic Polymers

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JEE Test Series 2026

Tabular Comparison of Natural and Synthetic Polymers with Examples

Polymers play a vital role in both our daily life and manufacturing. The difference between natural polymers and synthetic polymers is a classic JEE Main Chemistry concept that helps students identify materials, predict properties, and solve MCQs. Natural polymers are macromolecules produced by living organisms, while synthetic polymers are engineered by humans using chemical processes. Understanding their distinctions supports quick revision, exam memory retention, and deeper application in JEE numerical or theory questions.


What Are Polymers? Defining Natural and Synthetic Types

A polymer is a large molecule formed by repeating units called monomers joined together, usually through covalent bonds. Most everyday materials, from plastics to rubber bands, are polymers. Natural polymers are found in nature and formed via biological processes, while synthetic polymers are created artificially through chemical synthesis in laboratories or industry.


Natural polymers include substances like cellulose, starch, proteins, and DNA, which are essential for life processes and common in plants, animals, and humans. Synthetic polymers include materials like polythene, nylon, PVC, and Teflon, widely used in packaging, clothing, electronics, and countless industrial products.


Tabular Difference Between Natural and Synthetic Polymers

Criteria Natural Polymers Synthetic Polymers
Source Found in nature (plants, animals, microorganisms) Manufactured by humans (laboratory or industry)
Formation Biological processes (e.g., enzyme-driven) Chemical synthesis (polymerization reactions)
Structure Irregular chain length and branching; less uniform Controlled, regular structure; more uniform properties
Examples Cellulose, starch, proteins, silk, wool, DNA Nylon, polythene, PVC, Bakelite, Teflon
Biodegradability Usually biodegradable Mostly non-biodegradable
Mechanical Strength Moderate (depends on natural function) Can be engineered for high strength/flexibility
Uses Biological functions, food (starch), clothing (silk/wool) Packaging, ropes, fabrics, pipes, electronics
Environmental Impact Eco-friendly, minimal pollution Can cause pollution if not managed properly

This table is perfect for fast comparison, revision, and writing “difference between natural and synthetic polymers” answers in JEE Main Chemistry.


Classification and Examples of Natural and Synthetic Polymers

The polymers you encounter can be classified by source and structure. Natural polymers can be grouped mainly as polysaccharides, proteins (polypeptides), and polynucleotides. In contrast, synthetic polymers may be classified as addition or condensation polymers based on their formation method. Here are the classic examples to memorize:


  • Natural polymer examples: Cellulose (plant cell walls), starch (plant energy), proteins (hair, enzymes), silk (spider, silkworm), wool (sheep), DNA and RNA (genetic material).
  • Synthetic polymer examples: Polythene (plastic bags), polypropylene (containers), polystyrene (foam), PVC (pipes), nylon (fiber), Teflon (non-stick coating), Bakelite (electrical switches).

See more structures and additional examples as you practice with polymers questions and types of polymers at Vedantu.


Advantages and Disadvantages: Natural Polymers vs Synthetic Polymers

Knowing the strengths and weaknesses of both types helps with MCQs and practical application questions. Use these concise points for your next revision:


  • Natural polymer advantages: Biodegradable, renewable, non-toxic, vital for life. Easy disposal with low environmental impact. Good for food and medical uses.
  • Natural polymer disadvantages: Limited mechanical properties, vulnerability to decay or microbial attack, variable quality, difficult to modify for specific needs.
  • Synthetic polymer advantages: High durability, customizable properties, cost-effective manufacturing, mass production. Versatile in industry and technology.
  • Synthetic polymer disadvantages: Non-biodegradable (mostly), pollution risks, sometimes toxic additives, long-term environmental harm if not recycled properly.

JEE Main often tests you on “why are synthetic polymers better than natural polymers?” especially for strength, flexibility, or application cases.


Applications and Real-World Relevance

You will see natural polymers used in the textile industry (cotton, silk, wool), as food thickeners (starch), and in medicines (alginate bandages). Synthetic polymers are used in almost every manufactured item, from packaging films and bottles to automobile parts and electronics. For JEE Main, focus on questions about daily life examples, environmental impact, and types of polymerization (addition vs condensation polymerization).


  • Cellulose, a natural polymer, is essential for making paper and textiles.
  • Nylon, a synthetic polymer, replaced silk in parachutes and ropes due to higher strength and weather resistance.
  • Polythene (synthetic) dominates modern packaging but raises waste management challenges.
  • Starch (natural) is used in biodegradable plastics development to reduce environmental burden.

Revision tip: Organize these examples and points in a quick sheet for your final week before the JEE Main Chemistry paper.


Summary Table: Key Takeaways for JEE Main

Point of Comparison Natural Polymer Synthetic Polymer
Source of Material Biological origin Industrial/man-made
Biodegradability Yes Rarely
Flexibility/Modification Limited Highly customizable
Typical Use Living tissues, textiles Plastics, fibres, technology

To recap: natural polymers are eco-friendly and essential for life, but offer less processing flexibility. Synthetic polymers drive modern manufacturing, yet their environmental management is a key challenge. For full mastery of this JEE Chemistry topic, practice exercises with important MCQs and reinforce using Vedantu quick notes and revision tools.



Mastering the difference between natural polymers and synthetic polymers will help you score well in JEE Main Chemistry. Keep revising with Vedantu’s NCERT-style notes and practice sheets for complete conceptual clarity and exam success.


FAQs on Difference Between Natural Polymers and Synthetic Polymers

1. What is the main difference between natural and synthetic polymers?

The primary difference between natural and synthetic polymers lies in their source and method of formation.

  • Natural polymers are found in nature and are produced by living organisms. Examples include cellulose, starch, proteins, and DNA.
  • Synthetic polymers are man-made in laboratories using chemical processes. Common examples are nylon, polyethylene (plastic), and PVC.
Natural polymers are typically biodegradable, while synthetic polymers are usually more uniform in properties and used in a wider range of industrial applications.

2. What is a polymer?

A polymer is a large molecule formed by the repeated joining of small units called monomers.

  • Polymers can be both natural (biopolymers) and synthetic (plastics).
  • They have high molecular weight and unique properties based on the nature of their monomers and bonding.
  • Examples include DNA (natural) and polypropylene (synthetic).
Their structure and function vary widely, making them important in biology and industries.

3. What are examples of natural and synthetic polymers?

Natural polymers come from living organisms, while synthetic polymers are produced chemically.

Natural polymer examples:

  • Cellulose
  • Starch
  • Proteins
  • DNA/RNA
  • Natural rubber
Synthetic polymer examples:
  • Polyethylene (PE)
  • Nylon
  • Polyvinyl chloride (PVC)
  • Teflon
  • Bakelite
These examples are important for MCQs and exam table-based questions.

4. What are the advantages and disadvantages of natural polymers?

Natural polymers are eco-friendly but may have limitations compared to synthetic ones.

Advantages:

  • Biodegradable
  • Renewable sources
  • Non-toxic and generally safe
Disadvantages:
  • Less durable in harsh conditions
  • Limited thermal stability
  • May not offer uniform properties
They are widely used in food, medicine, and textiles, but not always suitable for industrial-scale production.

5. Why are synthetic polymers considered better in some cases?

Synthetic polymers often have properties tailored to specific industrial needs.

  • High strength and flexibility
  • Uniformity in composition
  • Customizable (e.g., color, toughness)
  • Resistant to chemicals and moisture
For uses like packaging, automotive parts, and electronics, synthetic polymers often outperform natural ones.

6. Which is an example of a natural polymer?

Cellulose is a classic example of a natural polymer.

Other major examples include starch, proteins, natural rubber, and DNA. These substances are produced by plants or animals and play vital roles in life processes.

7. How do the sources of natural and synthetic polymers differ?

Natural polymers are obtained from plants and animals, while synthetic polymers are made using chemical processes.

  • Natural polymer sources: e.g., cotton (cellulose), milk (casein), trees (natural rubber).
  • Synthetic polymer sources: Produced from petroleum, natural gas, or other chemicals in factories.
This distinction is crucial for exam-based distinction and application questions.

8. What is the difference between synthetic and biological polymers?

Biological polymers are produced by living organisms, while synthetic polymers are chemically manufactured.

  • Biological (natural) polymers: Examples include proteins, polysaccharides, and nucleic acids.
  • Synthetic polymers: Examples include plastics, nylon, polyesters, which are not produced naturally but made in labs.
Understanding this difference helps to answer concept and MCQ-based questions accurately.

9. Can natural polymers be modified to act like synthetic polymers?

Yes, natural polymers can sometimes be chemically modified to improve their properties.

  • Techniques such as cross-linking, grafting, or blending with synthetic polymers enhance durability and strength.
  • Examples include vulcanized rubber and chemically treated cellulose (e.g., rayon).
This creates hybrid materials with properties of both natural and synthetic polymers for industrial and medical applications.

10. Why don't all plastics degrade like some natural polymers do?

Most plastics (synthetic polymers) have strong chemical bonds that make them resistant to microbial breakdown.

  • Plastics like polyethylene or PVC are designed for durability, making them non-biodegradable under normal conditions.
  • Natural polymers such as starch or cellulose are easily degraded by enzymes and microorganisms.
This fundamental chemistry difference is why environmental concerns exist around plastic pollution.