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 84 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
Wow, this really help

duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

A hypothetical scenario illustrating the process of chemical selection A hypothetical scenario illustrating the process of chemical selection
Approach used to determine the evolutionary relationships among many animal species using molecular Approach used to determine the evolutionary relationships among many animal species using molecular
Electron atomic and molecular orbitals Electron atomic and molecular orbitals
Staying hydrated during physical activity Staying hydrated during physical activity
Molecular Genetics DNA picture matching question Molecular Genetics DNA picture matching question
Allelic differences in alcohol metabolism Allelic differences in alcohol metabolism
Video: What is Reverse Osmosis?

For a complete list of videos, visit our video library