Chapter 15 of 16
Syllabus
Introduction to Polymer Chemistry — Syllabus
Maharashtra Board · Class 12 · Chemistry
What Introduction to Polymer Chemistry covers in Maharashtra Board Class 12 Chemistry: 4 topics, for the 2026-27 session.
44 questions22 flashcards5 concepts
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4 Topics · Maharashtra Board Class 12 Chemistry · 2026-27
Topics in Introduction to Polymer Chemistry
1
Basic Concepts and Classification
- Polymers are high molecular mass macromolecules (10³ - 10⁷ u) formed by linking many small monomer units
- The term 'polymer' comes from Greek: 'poly' (many) + 'mer' (part/unit)
- Classification based on source: Natural (cotton, silk, rubber), Synthetic (nylon, PVC), Semisynthetic (rayon, cellulose acetate)
2
Addition Polymerization Mechanism
- Addition polymerization occurs without loss of small molecules
- Free radical mechanism involves three steps: Chain initiation, Chain propagation, Chain termination
- Initiators like benzoyl peroxide, acetyl peroxide generate free radicals
3
Condensation Polymerization
- Condensation polymerization involves elimination of small molecules (H₂O, HCl, NH₃, etc.)
- Requires bifunctional or multifunctional monomers
- Step-growth mechanism - any two molecular species can react
4
Important Synthetic Polymers
- Polyethylene: Two types - LDPE (branched, flexible) and HDPE (linear, rigid)
- LDPE: High pressure (1000-2000 atm), high temperature (350-570 K), peroxide initiator
- HDPE: Low pressure (6-7 atm), moderate temperature (333-343 K), Ziegler-Natta catalyst
Key Concepts
Polymers are high molecular mass compoundsProcess where monomers with double bondsProcess where polymers form by eliminationPolymers are classified asFour types
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What are the important topics in Introduction to Polymer Chemistry for Maharashtra Board Class 12 Chemistry?
Key topics in Introduction to Polymer Chemistry include Basic Concepts and Classification, Addition Polymerization Mechanism, Condensation Polymerization, Important Synthetic Polymers. Study these first, then practise questions on each for the Maharashtra Board Class 12 board exam.
How should I revise Introduction to Polymer Chemistry for the Maharashtra Board Class 12 board exam?
Learn the core ideas first, then work through the 44 practice questions on Introduction to Polymer Chemistry. Revise definitions regularly and use flashcards for quick recall before the exam.
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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