For example, nylon 6, 6 is formed by the condensation of ... with another radical to form the polymerised product. Question 34. Explain the difference between Buna – N and Buna – S Buna – N is a co-polymer of 1,3 – Butadiene and Acrylonitrile Synthesis of Buna –N: Call today! They are strong, hypoallergenic, non-absorbent, and mildew-resistant fabrics with high resistance to stretching,and degradation by chemical bleaches and to abrasion. Terylene [ICI], along with Dacron® [DuPont] in the U.S, are the first commercially marketed polyester fibers. Polyethylene terephthalate (PET or PETE) is a general-purpose thermoplastic polymer which belongs to the polyester family of polymers. The examples are terylene (dacron), nylon 6, 6, nylon 6, etc. The addition polymerisation of acrylonitrile in presence of a The polyester is used in the manufacturing of all kinds of clothes and home furnishings like the bedspreads, the sheets, the pillows, the furniture, the carpets, and the curtains.. Terylene,Bakelite, Polyvinyl chloride,Polythene. The monomeric units of terylene are glycol and which of the following . Here small monomer units are arranged one behind the other so as to form a chain. We are a leading supplier and fabricator of rubber and sponge strips, gaskets, rolls and sheet stock. C) done clear. Nylon - 66 is a polyamide of hexamethylene diamine , (CH2)6(NH2)2 and adipic acid , (CH2)4(COOH)2 . Dacron is the registered name for polyester material by Dupont. D) ... Acrylonitrile forms [BHU 1995] A) Terylene done clear. For the formation of terylene, the number of moles of ethylene glycol required per mole of terephthalic acid is (a) 1 (b) 2 (c) 3 (d) 4. Features: Manufactured from quality and tough ABS material. It is copolymer and has ester linkage. How does the presence of double bonds in rubber molecules influence their structure and reactivity? The monomers used are lactic acid and glycolic acid. Answer: ... (Buna-S) and 1, 3-butadiene and acrylonitrile (Buna-N). Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical resistance as well as dimensional stability. They differ in their constituents. Addition polymers: Polyvinyl chloride, Polythene Condensation polymers: Terylene, Bakelite 5. Dextron is a polyacetic acid polyglycolic acid polymer. Styrene is a building-block chemical used in the manufacture of many products that have improved the quality of everyday life. 15.5. Condensation polymers : Terylene, bakelite. B) done clear. A) done clear. Question 33. Question 10. Explain the difference between Buna-N and Buna-S. Ans: Both Buna-N and Buna-S are synthetic rubber and are co-polymers in nature. B) Orlon done clear ... × For free video lectures fill in the form below and we will get back to you. Buna-N: Constituents are : buta-1, 3-diene and acrylonitrile. Comparing with fiberglass safety helmets, this one is easier to manufacture only by injection molding which can bring you a considerable cost saving.. This step is called the chain terminating step. (Each reactant has six-carbon chain , hence trade code (66) is used) ABS safety helmets are made of quality acrylonitrile butadiene styrene, a common thermoplastic material with excellent impact resistance and toughness. Worldwide, about 60% of all styrene becomes polystyrene — a plastic which comes in several forms, including solid, foam, and film. Buna-S: Constituents are : buta-1, 3-diene, and styrene. Glyptal polymer is obtained from glycol by reacting with (a) malonic acid (b) phthalic acid (c) maleic acid (d) terephthalic acid. Anchor Rubber Products custom manufactures a complete line of rubber sheet including silicone rubber, viton, nitrile, sponge rubber, foam and plastics. Name the monomers of Terylene and Buna-N? 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