Bakelite CH 2 CH 2 OH OH H C 2CH 2 • Each monomer has two of the same functional groups. Butadiene and styrene are called as primary monomer. Classify the above polymers as: Addition or Condensation polymers Homopolymers or Copolymers Fibres, Elastomers, Thermoplastics or Thermosetting polymers e) Write the polymerisation reactions of the followtng polymers Buna-N Buna-S Nylon-6 6 , Nylon-6, Nylon-2 nylon-6 Dacron or Terylene Teflon, Polythene, Polyvinylchloride Polystyrene Polyacrylonttnle - Chemistry - Polymers Nylon 6,6 is a condensation polymer of hexamethylene diamine and adibic acid. Condensation polymers are formed by polycondensation, when the polymer is formed by condensation reactions between species of all degrees of polymerization, or by condensative chain polymerization, when the polymer is formed by sequential addition (by condensation reaction) of monomers to an active site in a chain reaction. It is used in the manufacture of unbreakable crockery. The polymer used for coating electrical wires, cables etc is … Synthetic scheme of Buna-S Rubber Buna-S Rubber: It is a random co-polymer formed by the emulsion polymerisation of a mixture of 1:3 butadiene and styrene in the presence of peroxide catalyst at 5 degree Celsius and therefore the product is called as cold rubber. For example, nylon -6, 6 With over 100 years of engineering expertise we are dedicated to offering the highest quality Buna S Polypak and other products. To which group or groups do polythene and bakelite belong? Chemistry MCQs for Class 12 with Answers Chapter 15 Polymers - … The examples are buna-S, buna-N, neoprene, etc. Condensation polymers: Terylene, bakelite. NCERT Exemplar Problems Maths Physics Chemistry Biology. Nevertheless, the polymer clearly forms by a step-growth process. Explanation: No explanation available. option (4) is correct. Be the first to write the explanation for this question by commenting below.. Related Questions: Options (a) Nylon, buna-S (b) Teflon, buna-N (c) Nylon 6,6, dacron (d) Neoprene, buna-S. The word ‘ Polymer’ is coined from two Greek words: ... (Buna - S) are examples of man-made polymers. Buna-S or Buna-N is an example of copolymer. Correct Answer: Nylon 6,6, dacron. Buna − S is a copolymer of 1, 3−butadiene and styrene. Option 1) Buna - S. Option 2) Neoprene. Classification of Polymers Based on Molecular Forces 1. Answer. Buna - S, Teflon & Neoprene are condition polymer. Answer: It is inert to most chemicals with the exception of fluorine and molten alkali metals. known as condensation polymers, e.g., nylon 6,6 is formed by the condensation of hexamethylene diamine with adipic acid. Condensation Polymers 1. Buna-S, which is formed by polymerisation of buta–1, 3–diene and styrene is an example of copolymer formed by addition polymerisation. Preparation: butadiene (about 75% by weight) and styrene (25% by weight) co-polymerize to give styrene butadiene rubber (SBR) as follows-The products formed by copolymerization show the specific properties of the monomers and hence is very useful in industry. The formation of copolymer Nylon 6, 6 is from adipic acid and hexamethylenediamine. 2. Question 15.5: Explain the difference between Buna-N and Buna-S. Answer Buna − N is a copolymer of 1, 3−butadiene and acrylonitrile. Some Condensation Polymers The difference in Tg and Tm between the first polyester (completely aliphatic) and the two nylon polyamides (5th & 6th entries) shows the effect of intra-chain hydrogen bonding on crystallinity. Buna - rubber is a copolymer of 2:44 900+ LIKES. Classify the following as addition and condensation polymers Nylon 6,6, Buna-N,Buna-S,Polythene,Polystyrene,Polyvinyl chloride Option 3) Teflon. (A) Nylon-66 (B) PTFE (C) Dacron (D) Glyptal. e) Nylon - 66: This is a condensation polymer that is formed from a reaction between adipic acid and hexamethylenediamine. Classification Based on Monomers. Nylon-6,6 or Nylon-6 is an example of condensation polymer. (Delhi, All India 2009) Answer: Nylon ‘6,6’ implies that it is a condensation polymer of two types of monomer molecules each containing six carbon atoms i.e. ... Condensation Polymers: The condensation polymers are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units. Example of copolymerization is the process of forming polymer Buna-S from 1, 3-butadiene and styrene. 3) Buna-S 4) Poly (ethyl acrylate) 58. ... Melamine formaldehyde polymer is formed by the condensation polymerisation of melamine and formaldehyde. A few ‘crosslinks’ are introduced in between the chains, which help the polymer to retract to its original position after the force is released as in vulcanised rubber. Condensation Polymers These polymers are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units. polymer to be stretched. 3.2k SHARES. For example, Polyethene; Heteropolymer or co-polymer: It consists of different type of monomer units. Condensation Polymer:-The condensation polymers are formed by repeated condensation reaction between two different bi-functional or tri-functional monomeric units. Homomer: In this type, a single type of monomer unit is present. The process of forming polymer Buna−S from 1, 3-butadiene and styrene is an example of copolymerization. Condensation Polymerization: Example, Nylon -6, 6, perylene, polyesters. Fibres Fibres are the thread forming solids which possess high tensile strength and high modulus. Gasket & Polymer Co. specializes in Buna S Polypak. 3.1k VIEWS. Option 4) Nylon 6,6 Dacron is formed from ethylene glycol and terephthalic acid with the removal of H 2 O. Nylon 6, 6 is formed from hexamethylenediamine and adipic acid with the removal of H 2 O. We hope the The manufacture of nylon-6 involves condensation of (a) Phenol and formaldehyde (b) ... A polymer of butadiene and acrylonitrile is called (a) Buna-2 (b) Buna-N (c) Buna-S (d) Buna-A. Which compound form linear polymer … Example: Buna-S, Buna-N, etc. Question 2. Draw the repeating unit for a condensation polymer. 3.2k VIEWS. • When these monomers react, small molecules such as water are lost 2. Also, it withstands high temperatures. Which of the following is not a condensation polymer ? Condensation polymerizations, as the name suggests, utilizes bond-forming reactions that generate a small molecule condensate, which often needs to be contin-uously removed to facilitate the formation of the polymer. The polymer used in manufacture of electrical goods such as switches, plugs etc is 1) Polythene 2) Bakelite 3) Melamine formaldehyde resin 4) Neoprene 59. The process of forming polymer Buna−S from 1, 3-butadiene and styrene is an example of copolymerization. C.T. Technically polyurethane is not a condensation polymer since no molecules are lost, but the functional group does rearrange. BUNA-S. Question 60: Identify the four groups into which the polymers are classified on the basis of the magnitude of intermolecular forces present in them. Which one of the following is not a condensation polymer? A hydrogen moves from the alcohol to the nitrogen, while the oxygen links to the carbon. Condensation Polymerisation: ... there are multiple units of every monomer. Buna-S, Buna-N. Check Answer and Solution for above question from What does the part ‘6, 6’ mean in the name nylon-6, 6? In this article, I shall describe some of the essential principles of condensation polymerizations or more appropriately called We hope the given Chemistry MCQs for Class 12 with Answers Chapter 15 Polymers will help you. Addition Polymers Which is correct example of condensation polymer . Condensation polymers are formed by condensation of two or more bifunctional monomers with the elimination of simple molecules like H 2 O, NH 3, alcohol, etc. Condensation polymer It is not a polymer ... Buna-S is a polymer of : 2:11 1.3k LIKES. Question 15.6: Arrange the following polymers in increasing order of their intermolecular forces. The urethane functional groups are similar to … It is a thermoplastic polymer that has a high softening point (600K). A. Dacron B. Neoprene C. Melamine D. Glyptal 2. 3.1k SHARES. It is a thermoplastic polymer. For your custom Buna S Polypak design, or reverse engineering, our exemplary service and efficient production ensures prompt deliveries coupled with outstanding service. Classification Based on Molecular Forces Polymers can also be classified on the basis of mode of polymerisation into two sub groups. • Condensation polymers are made from two different monomers. MCQs Of Polymer chemistry 1. Buna-S rubber is one of the commonly used synthetic rubber. Answer: b. Describe what is meant by a condensation polymer. , bakelite Glyptal 2 Explain the difference between buna-N and Buna-S. Answer Buna − N is polymer... Which compound form linear polymer … condensation polymers: Terylene, bakelite monomer unit is.... Monomer units which is correct example of copolymerization two Greek words:... ( -... 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