M.Sc. (Semester IV) (CBCS) Examination Mar/Apr-2018
Nano-Technology
POLYMERS AND NANOCOMPOSITES
Time: 2½ Hours
Max. Marks: 70
Instructions: Part-I is compulsory. Attempt any four questions from Part II. Figures to the right indicate full marks. Answers to the Part I and Part II are to be written in same answer book.
Part I
Q.1

Rewrite the sentence after choosing correct answer from the given alternatives:
07
Polymer is a large molecule or composed of many repeated subunits.
Macromolecule
Behavior
Nanomaterials
Color
The formation of the polymer chains occurs between
Bio-recognition site
Monomers
Macromolecules
Nano composites
Polymers formed from a single type of monomer are called
Homopolymers
Analyte
Only Statistical
Stress impact
Polymer derived from two or more different
Intermolecular bonds
Heteropolymer
Emission absorbance
Copolymers
have long sequences of different monomer units.
Block copolymers
Gasses
Nanomaterials
Color
Chain-growth polymerization involves the of molecules.
Linking
Sun rays
UV rays
Size dependent
Degree of Polymerization, is the number of in a polymer.
Monomeric units
Analyte
Hydrogen
Carbon
Q.1

Define the following terms.
07
Polymer
Heteropolymer
Homopolymer
Copolymer
Nanocomposite
Carbon fiber
CNT
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SLR-UV-658
Part II
Answer any four of the following.
Q.2
Explain the benefits of polymer composites.
14
Q.3
Write the synthesis process of polymer matrix nanocomposites.
14
Q.4
Explain the metal matrix nanocomposites their applications.
14
Q.5
Briefly explain the clay Polymer nanocomposites its applications.
14
Q.6
Answer any TWO of the following:
14
Applications of carbon composites
Describe Matrix
Describe ceramic
Q.7
Write short notes on. (Any Two)
14
Silicon carbide
Propellant
Conducting polymer