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2003 Course Polymer Technology (Elective I)

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Total No. of Questions : 12] P1364 [Total No. of Pages : 2 [3764]-328 B.E. (Chemical) POLYMER TECHNOLOGY (2003 Course) (Elective - I) (409341) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) 2) Answer three questions from Section I and three questions from Section II. Assume suitable data, if necessary. SECTION - I Q1) Classify different polymers based on addition and condensation of polymerization process. [16] OR Q2) What are different factors has influenced on polymer properties explain crosslinked, linear branch, thermoplastic, thermoset polymers in detail. [16] Q3) Explain different polymerization technique along with their reactor configuration and selection methodology. Explain in detail Bulk [16] polymerization. OR Q4) Explain interfacial polymerization process along with flowchart and phases etc. [16] Q5) What are different methods are used for determination of molecular wt in polymers explain in detail Gel permeation chromatography method in detail. [18] OR Q6) Write a note on (Any two) : [18] a) Effect of molecular wt on polymer properties. b) Polydispersity index and conversion of polymer. c) Membrane osmometry method for determination of molecular wt. P.T.O. SECTION - II Q7) Explain kinetics of free radical polymerization with consideration of following points. [16] a) Intiation. b) Propagation. c) Termination. Draw suitable rate expression for RP rate of polymerization. OR Q8) Explain kinetics of following : [16] a) Copolymerization kinetics. b) Kinetics of coordination polymerization. Q9) Explain the use and different fillers, plasticizers and lubricants, colourants used in compounding. [16] OR Q10) With suitable diagram explain injection moulding process alongwith temperature zones and operation. [16] Q11) With typical manufacturing flowsheet, explain production of Nylon 6, 6 polymer and PP polymer. [18] OR Q12) Write a note on (Any two) : [18] a) Synthesis of Epoxy thermosets. b) Synthesis of elastomers. c) Polystyrene synthesis. [3764]-328 2

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