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 Liquid crystals and nano materials imp questions!!!

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tanushree sharma



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Join date : 2010-11-07

PostSubject: Liquid crystals and nano materials imp questions!!!   Thu Dec 02, 2010 8:19 pm

LIQUID CRYSTALS
1.Describe the different classes of thermotropic liquid crystals, based on shape of the molecule.
2.Describe the various phase structures of thermotropic liquid crystals.
3.What is the general molecular structure of calamitic liquid crystals? Name a few common central cores, linkages and terminal groups of calamitic liquid crystals.
4.Write a short note on discotics with its general molecular structure.
5.Write a short note on bent or banana type liquid crystals.
6.What is a lyotropic liquid crystal? Explain the lamellar and cubic phases with examples.
7.Explain the mechanism of display systems using liquid crystals.
8.Explain the special features of liquid crystals as a mesophse.
9.Distinguish between smectic, nematic and cholesteric phase structures with suitable examples.
10.Distinguish between thermotropic and lyotropic liquid crystals with examples.

NANOMATERIALS
1.Discuss the classification of nanomaterials based on their origin, phase composition and dimension.
2.Write short notes on electrodeposition method of synthesis of nanomaterials
3.Describe the chemical vapour deposition method of preparing nanomaterial films
4.Explain the pulsed laser deposition method of synthesis of nanomaterials
5.How do you synthesize nanoparticles by sol-gel method
6.Describe the ball milling method of preparation of nanomaterials.
7.Describe the different types of carbon nanotubes.
8.Differentiate between nanoparticles and nanomaterials
9.Write the applications of nanomaterials
10.Explain one method of particle size determination in nanomaterials.
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gaurav_prakash
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Posts : 134
Join date : 2010-09-28
Location : Manipal 17th Block

PostSubject: Re: Liquid crystals and nano materials imp questions!!!   Thu Dec 02, 2010 10:51 pm

Thank you for sharing Tanushree!
Greatly Appreciated
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gaurav_prakash
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Posts : 134
Join date : 2010-09-28
Location : Manipal 17th Block

PostSubject: Re: Liquid crystals and nano materials imp questions!!!   Wed Dec 08, 2010 4:44 pm

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PostSubject: Re: Liquid crystals and nano materials imp questions!!!   Today at 3:55 pm

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