This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Discuss how copolymerization would affect crystallinity. What will be an ideal ... (Read 58 times)

erika

  • Hero Member
  • *****
  • Posts: 522
on: Aug 19, 2018
Discuss how copolymerization would affect crystallinity.
 
  What will be an ideal response?

Question 2

Explain bimodal distributions of polymers and their usefulness.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

efwsefaw

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Aug 19, 2018
Answer to Question 1

The nature of copolymerization would cause more randomness to occur along the molecular chain than would the corresponding homopolymers. Therefore, crystallinity would be lower.

Answer to Question 2

Bimodal distributions have two peak areas in the MWD plot. These two peaks indicate that some lower molecular weight material has been mixed with some higher molecular weight material. This mixing is often done to improve the processability of a material with a high, narrow MWD. The lower molecular weight material will melt at lower temperatures and provide lubrication for the higher molecular weight polymers, thus increasing the ease with which they can be processed.


erika

  • Hero Member
  • *****
  • Posts: 522
Reply #2 on: Aug 19, 2018
Both answers were spot on, thank you once again


efwsefaw

  • Sr. Member
  • ****
  • Posts: 351
Reply #3 on: Aug 19, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Cultures Ideal Body Types Cultures Ideal Body Types
Chemicals can adversely affect personal protective equipment (PPE) in three ways: They can permeate ... Chemicals can adversely affect personal protective equipment (PPE) in three ways: They can permeate ...
Rising sea levels will affect millions in coastal zones and on islands Rising sea levels will affect millions in coastal zones and on islands
Factors That Affect Your Basal Metabolic Rate Factors That Affect Your Basal Metabolic Rate
How long does exercise affect blood sugar? How long does exercise affect blood sugar?
Discuss the trend you notice about enbridge inc Discuss the trend you notice about enbridge inc
Video: Types of antimicrobial substances (interferons & complement protein)

For a complete list of videos, visit our video library