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2003 Course Polymer Reaction Eng. (Elective I)

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Total No. of Questions : 12] P1014 [Total No. of Pages : 3 [3664]-297 B.E. (Polymer) POLYMER REACTION ENGINEERING (2003 Course) (Elective - I) (409366) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Draw neat diagrams wherever necessary. 3) Numbers to the right indicate full marks. 4) Assume suitable data, if necessary. 5) Use of logarithmic table, electronic pocket calculators is allowed. SECTION - I Q1) a) Discuss the various parameters that affect the properties of any polymeric material. [6] b) Explain the role of change in viscosity in Polymer reaction Engineering. [4] c) Polymer A is made up of the following distribution of the chain molecules. Find the number average molecular weight, weight average molecular weight and polydispersity Index. [6] Data: Weight (in gms) Molecular weight 5 10,000 10 50,000 10 1,00,000 OR Q2) a) Discuss the role of heat transfer in polymerization process. [4] b) From the analysis of the given mixture which is composed of 10 molecules of 10,000 monomer lengths and 100 molecules of 10 monomer lengths find the Dispersion Index of the sample. [4] c) Define at least four quantities used for the characterization of polymers. [8] P.T.O.

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