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2003 Course Polymer Structure & Property Relationship

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Total No. of Questions : 12] P1492 [Total No. of Pages :3 [3764] - 351 B.E. (Polymer) POLYMER STRUCTURE AND PROPERTY RELATIONSHIP (2003 Course) Time : 3 Hours] [Max. Marks:100 Instructions to the candidates: 1) Answer 3 questions from Section I and 3 questions from Section II. 2) Answers to the two sections should be written in separate books. 3) Neat diagrams must be drawn wherever necessary. 4) Figures to the right indicate full marks. 5) Your answers will be valued as a whole. 6) Assume suitable data, if necessary. SECTION - I Q1) a) What leads to charring in polymers. [2] b) Explain chromophoric effect. [2] c) Explain role of atoms on density. [2] d) Explain role of atoms on Hammability. [2] e) Give the effect of wheathering on polymer. [2] f) Explain the effect of presence of H-atom in any polymeric structure and also the type of bonds if forms. [8] OR Q2) a) Explain the type of bonds oxygen atom makes and thus the effect on properties. [6] b) Explain the type of bonds nitrogen atom makes and thus the effect on properties. [6] c) Explain the type of bonds carbon atom makes and thus the effect on properties. [6] P.T.O.

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