POLYMERS in One Shot - All Concepts, Tricks & PYQs | Class 12 | NEET
Competition Wallah・2 minutes read
Polymers are large molecules formed from monomers, classified based on source and structure, undergo various polymerization modes, including condensation. The text details the process and classification of different polymers like polypropene, polyethylene, nylon, and Bakelite, highlighting their formation, structure, and uses.
Insights
- Polymers are classified into natural, semi-synthetic, and synthetic categories based on their source, with variations like biodegradable and non-biodegradable types, showcasing the diverse origins and environmental impacts of these materials.
- Polymerization processes, such as chain growth and condensation, lead to the formation of distinct polymer structures like elastomers, thermoplastics, and thermosetting polymers, each characterized by unique intermolecular forces and bonding mechanisms, influencing their physical properties and applications.
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Recent questions
What are the different classifications of polymers?
Polymers are classified based on their source, including natural polymers found in plants and animals, semi-synthetic polymers which are modifications of natural polymers, and synthetic polymers like polythene and PVC.
How is polymerization achieved in propene?
Polymerization of propene is achieved by creating radicals through breaking the double bond C2, known as Stein, and carefully joining these radicals to form molecules like polypropene used in tires, footwear, and cable insulation.
What is the process of condensation polymerization?
Condensation polymerization involves the removal of small molecules like water to form amide or ester linkages, creating polymers like Nylon 66 from amine and acid, and Polystyrene from acid and alcohol.
How are thermosetting polymers formed?
Thermosetting polymers like Bakelite are formed through linear polymerization in acidic or basic mediums, followed by cross-linking to create a network structure, enhancing their properties.
What are some examples of biodegradable polymers?
Biodegradable polymers involve specific structures like Poly Beta Hydroxy Butylish formed through ester linkage, Nalon 26 from Glyson and amino caproic acid through amide linkage, and three hydroxy butane acid and three hydroxy pentaneic acid.
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