3.4. Which one of the following polymers is not obtained by condensation polymerisation? In these polymerisation reactions, the elimination The polymers made by addition polymerisation from two different monomers are termed as copolymers, e.g., Buna-S, Buna-N, etc. The remaining 22 chapters are concerned with new and better polymers designed for a specific end use or physical property. JEE Main 2020 Paper 5th September 2020 | (Shift-2), Chemistry Page | 6 15. Condensation polymers The condensation polymers are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units. condensation polymerization 3. addition polymerization:- the polymer is formed from the monomer, without the loss of any material, and the product is the exact multiple of the original monomeric molecule. Give below in a tabular column is the difference between addition and condensation polymerization. 1 Tag Results for "condensation" Understanding How Anti-Fog Glasses Works! Give below in a tabular column is the difference between addition and condensation polymerization. Condensation Polymerisation or Step Growth polymerization: Polymerisation generally involves a repetitive condensation reaction between two bi-functional monomers. In chemistry of industrial polymers: Industrial polymerization methods. A condensation polymerization is a process that involves repeated condensation reactions between two different bi-functional or tri-functional monomers. Condensation polymerization, on the other hand, is endothermic—that is, the reaction requires an input of heat from an external source. Moreover, by UV-polymerization, the hydrogel synthesis may be done (Hubbell, 1996), the planned structures may be synthesized and photo-reversible systems are also possible, which means that after exposing to UV light, preformed hydrogels degrade and so a drug is released (Andreopoulos et al., 1998). polyesters, polyamides, polyurethanes, etc. Process Improvements and Polymerization Kinetics Process Technology. Step-growth polymerization refers to a type of polymerization mechanism in which bi-functional or multifunctional monomers react to form first dimers, then trimers, longer oligomers and eventually long chain polymers.Many naturally occurring and some synthetic polymers are produced by step-growth polymerization, e.g. Classification: Natural and synthetic, methods of polymerization (addition and condensation), copolymerization. Addition Polymerization Condensation Polymerization Cross-linking using enzymes Some import ant polymers: natural and synthetic like polythene, nylon, polyesters, bakelite, rubber. (1) Bakelite (2) Nylon 6 (3) Buna-N (4) Nylon 6, 6 Unit XVI: Chemistry in Everyday Life (Periods 8) 1. ments and the kinetics of addition and condensation polymerization of common monomers. In these cases the reactor must supply heat in order to maintain a practical reaction rate. The second type of reaction is known as chain-growth polymerization. In condensation reactions, the product of each step is again a bi-functional species and the sequence of condensation goes on. A condensation polymerization is a process that involves repeated condensation reactions between two different bi-functional or tri-functional monomers. 2. 8 ) 1 polymers are formed by repeated condensation reactions between two different bi-functional or tri-functional.... 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