Question

Why degree of crystallinity affects polymer properties?

Why degree of crystallinity affects polymer properties?

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Degree of crystallinity is defined as the fractional amount of polymer that is crystalline.

for semi crystalline polymers the degree of crytallinity shows the morphology of the material and determine various mechanical properties of material properties like impact stress of sample, yeild stress or the elastic modulus of material.

degree of crystallinity is different of polymer to polymer shows different morphology hence, variation in properties of polymer's are observed.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
How does annealing affect polymer crystallinity? Why does it have such an effect?
How does annealing affect polymer crystallinity? Why does it have such an effect?
Describe the chemical structural features that can increase the crystallinity of the polymer.
Describe the chemical structural features that can increase the crystallinity of the polymer.
Calculate crystalline density Sample A of an unknown polymer has 33 volume percent crystallinity and a...
Calculate crystalline density Sample A of an unknown polymer has 33 volume percent crystallinity and a density of 0.856 g/cm3 and sample B of the same polymer has 74 volume percent crystallinity and a density of 0.918 g/cm3 . What is the density of the pure crystalline form of the polymer?
Branching in the polymerization process tends to increase the level of crystallinity in a polymer.   True  ...
Branching in the polymerization process tends to increase the level of crystallinity in a polymer.   True   or   False. The Heat Deflection Temperature (HDT) of a glassy or amorphous polymer is usually found far below (i.e., > 50 C below) the glass transition temperature.   False or   True.   
A lab developed a new biodegradable polymer. The polymer sample was tested with Differential scanning calorimetry...
A lab developed a new biodegradable polymer. The polymer sample was tested with Differential scanning calorimetry (DSC). It was found that the heats of melting DHm and crystallization DHc of the polymer are 61 J/g and 5 J/g respectively. X-ray diffraction was used to measure the crystallinity( Xc) of the polymer sample. Xc was determined to be 55%. The polymer was then mixed with drug molecules to fabricate drug-encapsulated thin film. DSC analysis of the film showed that the heats...
Explain the relationship between STRUCTURE/ PROPERTIES/ PROCESSING/ PERFORMANCE of a polymer which is a drawn fiber...
Explain the relationship between STRUCTURE/ PROPERTIES/ PROCESSING/ PERFORMANCE of a polymer which is a drawn fiber thermoplastic.
1. This question is related to your knowledge of how chemical structure affects a polymer’s glass...
1. This question is related to your knowledge of how chemical structure affects a polymer’s glass transition temperature. For each pair below draw the repeat unit of the polymers, select which polymer you believe has a higher glass transition temperature, and explain Pair 1: polyethylene versus poly(vinyl alcohol) Pair 2: poly(hydroxyethyl methacrylate) versus poly(propyl methacrylate) Pair 3: polyethylene versus polypropylene 2. You have polymerized a product containing seven PMMA molecules: three of the molecules have a degree of polymerization of...
why chemical properties for metals not changed in plastic deformation even if properties be changed to...
why chemical properties for metals not changed in plastic deformation even if properties be changed to a very large degree by forging ? Noet: place writing be clear, thanks
what can you say about the polydisparity of synthetic and natural polymer? Calculate the average degree...
what can you say about the polydisparity of synthetic and natural polymer? Calculate the average degree of polymerization of Nylon 11
why is atactic polymer incapable of crystallizing
why is atactic polymer incapable of crystallizing
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT