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

Author Question: Using molecular explanations, discuss the differences in mechanical, physical, and chemical ... (Read 85 times)

madam-professor

  • Hero Member
  • *****
  • Posts: 584
on: Aug 19, 2018
Using molecular explanations, discuss the differences in mechanical, physical, and chemical properties of natural rubber and butadiene.
 
  What will be an ideal response?

Question 2

What is the effect of chlorinating rubber?
 
  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

durant1234

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Aug 19, 2018
Answer to Question 1

Natural rubber has a methyl group which interferes with movement restricting the bending, twisting, and sliding motions across the molecules and increases stiffness, gives a higher strength and higher temperature stability. Polybutadiene has poor tensile strength, tear resistance, poor resistance to solvents, and tack because of the lack of the methyl group.

Answer to Question 2

Chloroprene rubber or neoprene has many benefits. It has a chlorine bonded to one of the carbons in the carbon-carbon double bond. The effect of the chlorine is to improve oil resistance. Since the chlorine is a larger molecule it will cause intermolecular interference and greater strength and stiffness than polybutadiene, polyisoprene, and natural rubber. The chlorine also gives the material greater thermal stability and also makes it nonflammable.


madam-professor

  • Member
  • Posts: 584
Reply 2 on: Aug 19, 2018
Great answer, keep it coming :)

dyrone

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

NMD differences between yeast and mammals NMD differences between yeast and mammals
Activation energy of uncatalyzed and catalyzed chemical reactions Activation energy of uncatalyzed and catalyzed chemical reactions
Physical Geography and Environmental Issues Physical Geography and Environmental Issues
The Biological Functions of Nucleic Acids: A Preview of Molecular Biology The Biological Functions of Nucleic Acids: A Preview of Molecular Biology
Molecular Movement Molecular Movement
A Successful Physical Fitness Program Uses FITT Principles A Successful Physical Fitness Program Uses FITT Principles
Video: Bone Growth and Remodeling

For a complete list of videos, visit our video library