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In condensation reactions, the product of each step is again a bi-functional species and the sequence of condensation goes on. Some import ant polymers: natural and synthetic like polythene, nylon, polyesters, bakelite, rubber. 1 Tag Results for "condensation" Understanding How Anti-Fog Glasses Works! 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). In chemistry of industrial polymers: Industrial polymerization methods. JEE Main 2020 Paper 5th September 2020 | (Shift-2), Chemistry Page | 6 15. Addition Polymerization Condensation Polymerization polyesters, polyamides, polyurethanes, etc. In these cases the reactor must supply heat in order to maintain a practical reaction rate. ments and the kinetics of addition and condensation polymerization of common monomers. 3.4. The second type of reaction is known as chain-growth polymerization. Which one of the following polymers is not obtained by condensation polymerisation? Process Improvements and Polymerization Kinetics Process Technology. Condensation Polymerisation or Step Growth polymerization: Polymerisation generally involves a repetitive condensation reaction between two bi-functional monomers. 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. A condensation polymerization is a process that involves repeated condensation reactions between two different bi-functional or tri-functional monomers. Classification: Natural and synthetic, methods of polymerization (addition and condensation), copolymerization. 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. (1) Bakelite (2) Nylon 6 (3) Buna-N (4) Nylon 6, 6 Cross-linking using enzymes Give below in a tabular column is the difference between addition and condensation polymerization. The polymers made by addition polymerisation from two different monomers are termed as copolymers, e.g., Buna-S, Buna-N, etc. 2. Condensation polymers The condensation polymers are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units. In these polymerisation reactions, the elimination The remaining 22 chapters are concerned with new and better polymers designed for a specific end use or physical property. A condensation polymerization is a process that involves repeated condensation reactions between two different bi-functional or tri-functional monomers. Give below in a tabular column is the difference between addition and condensation polymerization. Unit XVI: Chemistry in Everyday Life (Periods 8) 1. Is again a bi-functional species and the sequence of condensation goes on as chain-growth polymerization and. Growth polymerization: polymerisation generally involves a repetitive condensation reaction between two bi-functional monomers Natural and synthetic like polythene nylon... 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