
	Trending ▼ ICSE CBSE 10th ISC CBSE 12th CTET GATE UGC NET Vestibulares ResFinder

2003 Course Speciality Polymers

3 pages, 38 questions, 0 questions with responses, 0 total responses,

	pune_eng	+Fave Message
	Profile Timeline Uploads Q & A

Home > pune_eng >

Instantly get Model Answers to questions on this ResPaper. Try now!
NEW ResPaper Exclusive!

Formatting page ...

Total No. of Questions : 12] [Total No. of Pages : 3 [3864]-392 P1316 B.E. (Polymer Engineering) SPECIALITY POLYMERS (2003 Course) Time : 3 Hours] [Max. Marks :100 Instructions to the candidates: 1) Answer any THREE questions from each section. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 5) Assume suitable data, if necessary. SECTION - I Q1) a) b) c) d) Q2) a) b) c) d) Q3) a) b) c) Define liquid crystalline polymers. Classify them. [5] What is the difference between lyotropic and thermotropic LCP s. [4] What are the structural factors responsible for liquid crystalline behaviour. Explain. [5] State the properties of LCP s. [4] OR What is a mesophase? [2] List and show pictorially different types of mesophases. [5] Enlist at least three commercially important liquid crystalline polymers. Give their applications. [5] What is a mesogen? Classify LCP s on the basis of presence of mesogen in a chain. Give suitable examples. [6] Draw structures of 5 conducting polymers. Name 3 conducting polymers and give their applications. Explain the band theory of conduction in conducting polymers. OR [5] [5] [6] P.T.O. Q4) a) b) c) Q5) a) b) c) Q6) a) b) c) What are the structural features responsible for intrinsic conduction in polymers. Explain doping in intrinsically conducting polymers. [5] Give synthesis of conducting polymers. Illustrate with suitable examples. [5] Explain the following terms soliton, polaron, bipolaron. [6] Explain the structural criteria required to get heat resistance in a polymer.[5] Give 3 examples with structures of heat resistant polymers. [5] List the applications of heat resistant polymers. [6] OR Give the synthesis and applications of any 2 of the following polymers PPS, PPO, PEEK, Polyetherimide. [5] What are the parameters or criteria by which heat resistance of a polymer is measured? [6] Describe the experimental techniques to measure these parameters. [5] SECTION - II Q7) a) b) c) Q8) a) b) c) Q9) a) b) c) What are photosensitive polymers? Give 3 examples of photopolymers. [6] Define the terms photolithography, positive photoresist and negative photoresist. [6] State the applications of photosensitive polymers in various fields. Explain any one in detail. [6] OR How is a photoresist applied on a substrate? Give 2 examples of materials used as positive and negative photoresists. [8] Define a membrane. Give various applications of polymeric membranes. [5] List 5 polymeric materials used in making of membranes. [5] What are biopolymers? How are synthetic biopolymers made? Explain any 2 case studies. [6] Explain the mechanism of controlled drug delivery. Which are the polymers used for the same? [5] Write a brief note on biocatalysts. [5] OR [3864]-392 2 Q10)a) b) c) Q11)a) b) c) What are the physical properties required to choose a polymer for use in biomedical applications. State polymers used in orthopaedic applications. [5] Write a short note on biopolymers. [5] What are biomaterials? List their applications. What are the requirements for a material to function well as a biomaterial? [6] State the reasons for increasing use of plastics in construction both nonstructural and structural. List the share of various plastics in construction with their corresponding applications. [6] What is the principle used in fiber optics? What is the structure of a fibre optic cable? Which polymers are used in making it? [5] What is the composition of a polymer concrete? What are the advantages and disadvantages of polymer concrete? [5] OR Q12)a) b) c) What is polymer impregnated concrete? Give approximate formulation of the same. [5] List the various applications of plastics in the field of construction. [5] What is the purpose of coating of agricultural seeds and chemicals? What are the desirable properties polymers should possess to be used in coatings? Which polymers are used for the same? [6] E [3864]-392 E 3 E

Formatting page ...

Tags : Pune, Engineering, University of Pune, Engineering question papers, Pune University, previous year question papers, question papers, india, model question paper, pune university paper pattern, pune university syllabus, old question papers

pune_eng chat

Horizontal lines at:
Guest Horizontal lines at:
AutoRM Data:
Box geometries: