How are polymers classified, Chemical Engineering

1. a) How are Polymers classified?

   b) Define polymerization. Differentiate addition and condensation polymerization.

2. a) Explain the free radical mechanism of addition polymerization taking ethylene as a  monomer.

    b) Give the synthesis and applications of Teflon.

3. a)Differentiate between thermoplastics and thermosetting plastics.

    b)What is glass transition temperature?Discuss the following factors affecting GTT

        i) Flexibility ii) Intermolecular forces.

4. a) Explain the manufacture and applications of the following high polymers:

       i)Polymethylmethacrylates (plexi glass) ii) polyurethanes.

   b) What are elastomers? Mention the advantages of synthetic rubber over natural rubber.

5. a) What are the deficiencies of natural rubber? What is vulcanization of rubber.

    b) Explain the manufacture of Silicone rubber. Mention their applications.

 

 

Posted Date: 4/2/2013 2:37:04 AM | Location : United States







Related Discussions:- How are polymers classified, Assignment Help, Ask Question on How are polymers classified, Get Answer, Expert's Help, How are polymers classified Discussions

Write discussion on How are polymers classified
Your posts are moderated
Related Questions
what is the advantages & disadvanteges of road ways

Find the Composition of Product Gas Methane reacts with 100 % excess oxygen to form formaldehyde and water. However, in an undesired side reaction, some of the methane is comb

Hi, my name is Luan Sousa, i am from Brazil and i am a chemical engineering student. I am developing a project of formox plant design and i would like to know about yields of conve


What are the objectives of heat treatment of metals? Objectives of heat treatment-  Cause relief of internal stresses developed while cold working, welding, casting, forgi

An organic compound is found to contain 37.5% of C, 3.2% of H and 59.3% of F. The following pressure and volume data were obtained for 1.0g of this substance at 90 degrees celsius

Materials used for DC applications are: Iron and low-carbon steels (maximum carbon 0.05 %)  • Iron-Nickel alloys (Permalloy)   • Iron-Cobalt alloy (Permendur)

air flows through apipe at arte of 200L/S. The pipe of two sections of diameters 20cm and 10cm with asmoth reducing section the pressure are difference between the two pipe sectio

Colebrook equation is used to find a friction factor, f , in a pipe flow as given by: where ? and Re are the roughness ratio and Reynolds number respectively. Considering

formule for alcoholic cidity