Fast recall of monomer structures, polymer classification, analgesics, antibiotics, and biodegradable polymers.
Polymers and Chemistry in Everyday Life are high-yield, memory-based chapters that provide easy marks in board exams and entrance tests when reviewed systematically.
Polymers Classification: Addition Polymers (Polythene, Teflon, PAN, Buna-S, Buna-N) formed by repeated addition of monomer units without loss of small molecules. Condensation Polymers (Nylon-6,6, Terylene/Dacron, Bakelite, Melamine) formed by condensation reaction with elimination of water/alcohol.
Important Monomers: Nylon-6,6 (Adipic acid + Hexamethylenediamine), Terylene (Ethylene glycol + Terephthalic acid), Bakelite (Phenol + Formaldehyde), Buna-N (1,3-Butadiene + Acrylonitrile), PHBV (Biodegradable copolymer).
Chemistry in Everyday Life: Drugs classification into Analgesics (Narcotic vs Non-narcotic), Tranquilizers, Antiseptics (Dettol: Chloroxylenol + Terpineol), Disinfectants (1% Phenol), Antacids, and Cleansing agents (Soaps vs Anionic/Cationic/Non-ionic Synthetic Detergents). Dr. Aarzoo Saini provides monomer memory charts at We-Gyaan Classes.
Key Takeaways for Students
- Memorize exact monomer chemical structures for Nylon-6,6, Terylene, and Bakelite.
- Differentiate Antiseptics (applied to living tissue) from Disinfectants (applied to inanimate objects).
- Identify biodegradable polymers like PHBV and Nylon-2-nylon-6.
- Understand cleansing mechanism differences between soaps and synthetic detergents.
Authored by Dr. Aarzoo Saini
Founder & Lead Educator at We-Gyaan Classes Roorkee, with over 20 years of teaching excellence in Science and Chemistry for Board Exams, NEET, JEE, and CUET.