Answered: Briefly describe what is thermoplastic,…

Chemistry for Engineering Students

3rd Edition

ISBN:9781285199023

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter2: Atoms And Molecules

Section: Chapter Questions

Problem 2.6PAE: Use the web to research the amount of PVC polymer produced annually in the United States. What are...

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Question 1

a. Briefly describe what is thermoplastic, thermoset plastic and elastomer. Give examples to clarify your answers.

b. Briefly discuss the effect of thermodynamic on polymerization.

c. What are important factors influencing the properties of polymers?

Question 2

a. Discuss the suitable initiator to start an addition polymerization.

b. Define what is auto-acceleration, what causes this effect and how to minimize this effect.

c. Briefly discuss emulsion and suspension polymerization techniques.

Question 3

a. Discuss the differences between condensation and addition polymerization.

b. What requirement should be provided to achieve high yield and high molecular weight of polymer by condensation reaction?

c. What is interfacial polymerization?

Question 4

a. Describe biopolymer and synthetic polymer. Give examples to support your answer

b. Briefly discuss the classification of polymers.

c. Why polymers are widely used in our daily life?

Question 5

a. Describe TWO (2) important factors that affect materials chain flexibility and properties

b. Discuss briefly factors that influencing plastic properties.

c. What are important factors influencing glass transition temperature of amorphous polymers?

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