natural polymers:- the definition of a natural polymer is a polymer that results from only raw materials that are found in nature. Write some examples of condensation polymers. Some polymers are made via condensation polymerisation. D. condensation polymer. 10. Which is correct example of condensation polymer . 3.What is a biodegradable polymer ? (Delhi, All India 2009) Answer: […] Teflon is homopolymer of monomeric units of tetra-fluoro-ethene. Condensation polymer among the following is - (a) Teflon (b) Polystyrene (c) PVC (d) Dacron Download a PDF of this page Science of Plastics Definition Plastics are a group of materials, either synthetic or naturally occurring, that may be shaped when soft and then hardened to retain the given shape. Free PDF Download of CBSE Chemistry Multiple Choice Questions for Class 12 with Answers Chapter 15 Polymers. Condensation polymers The condensation polymers are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units. Synthetic polymers: Polymers prepared in laboratory. Therefore, their overall weightage in JEE Main is 2-3%. The polymers obtained by addition polymerization are called addition polymers. Check Answer and Solution for above question Question 2. Formulas for these will be displayed below by clicking on the diagram. This polymer can absorb 800 times it own weight of distilled water, but only 300 times its weight of tap water. Commonly used condensation polymers:-Nylon -PET (polyethene terephthalate) Why is PET considered to be a polyester? Step-growth polymerizations can be divided into two lasses: condensation and addition polymerization. -It requires two like molecules. Click to know more. A polymer is a substance made of many repeating units. Because it is a polymer that contains the ester functional group it it's main chain. Important Questions for Class 12 Chemistry Chapter 15 Polymers Class 12 Important Questions Polymers Class 12 Important Questions Very Short Answer Type Question 1. Examples: PVC, polystyrene, Teflon, polyethylene, etc. take place. The process can be represented as follows: + + + Branched + + + Linear 2. Example: Teflon, polyethylene, PVC Part 7: The Mechanism of Condensation Polymerization You know that monomers that are joined by condensation polymerization have two functional groups. Give an example of a biodegradable aliphatic polyester. Monomer Polymer Description Ethene Polyethene (PE) • Low density polyethene (LDPE) • Condition : 200oC and 1200 atm under oxygen. Example of thermosetting polymer. B. monopolymer. Condensation polymers are the result of repeated condensation reactions between two different bi-functional monomers. 6. Ans. Characteristics of Condensation Polymers C. homopolymer. Condensation Polymerization - Condensation polymerization is a form of a step-growth polymerization where smaller molecules or monomers react with each other to form larger structural units (usually polymers). Examples of naturally occurring condensation polymers are cellulose, the polypeptide chains of proteins, and poly(β-hydroxybutyric acid), a polyester synthesized in large quantity by certain soil and water bacteria. The plastics that have so changed society and the natural and synthetic fibres used in clothing are polymers. polymers have the same empirical formula as their monomers. Other Addition Polymers. Let's look at a few common examples of condensation polymers. Condensation polymers are formed by reaction of bi- or polyfunctional molecules, with the elimination of some small molecule (such … Start studying Chapter 10 Chem Exam 3. 1. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Semi synthetic polymers: Polymers derived from naturally occurring polymers by carrying out chemical modifications. Answer. One example of a condensation polymer is A polyethylene B nylon C Teflon D from CHM 102 at American University of Sharjah For example, polythene, Teflon and polyacrylonitrile are homopolymers. Ans. Related Questions: Syngas is a mixture of A polymer is a large molecule that is made up of repeating subunits connected to each other by chemical bonds.Do you need some examples of polymers? (a) Teflon (b) PVC (c) nylon (d) polyethylene . Plastics are polymers. The best example is polymerization of ethylene. What does the part ‘6, 6’ mean in the name nylon-6, 6? In these polymerisation reactions, the elimination of small molecules such as water, alcohol, hydrogen chloride, etc. • Contain branched chains which decrease the density (less pack). Ans. Explanation: No explanation available. double bond containing molecule) to one another. 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