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Polymer properties are closely related to their molecular mass, size and .

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Important Questions on Polymers

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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
The polydispersity index of the polymer is always:
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
A polymer sample is made up of 30% molecules of mass 20,000,40% of 30,000 and the rest mass of 60,000 . Its number average molecule mass is
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers

Which option is correct for synthetic polymer?

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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
What is PDI (Poly Dispersity Index)?
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
Write the formula to determine 'weight average molecular weight' of polymers.
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
The Poly Dispersity Index (PDI) of a polymer is 1.5. If its number average molecular mass is 30,000, calculate its weight average molecular mass.
HARD
Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
Explain the determination of molecular mass of polymers by number average molecular weight method.
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
In a polymer, there are 300 molecules with a molecular weight of 100, 200 molecules with a molecular weight of 1000 and 100 molecules with a molecular weight of 10000. The number average molecular weight of polymer is
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
In a polymer sample 35% of molecules have a molecular mass 24,000, 40% have 30,000 and the rest molecules have a molecular mass of 50,000. What is the number average molecular mass of the polymer?
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
Define polydisperse polymer.
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
The number average molar mass and mass average molar mass of a polymer are respectively 30,000 and 40,000. The polydispersity index (PDI) of the polymer is
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
Write formula for number average molecular weight (M-n).
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
Write a short note on molecular mass of polymers.
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
In a polymer sample, the molecular weight of 30 molecules is 25,000, molecular weight of 25 molecules is 30,000 and molecular weight of another 40 molecules is 43,000 then calculate the weight average molecular weight (M-w) of the polymer.
HARD
Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
Why PDI of proteins is one?
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
In a polymer sample, the molecular weight of 10 molecules is 20,000, molecular weight of 30 molecules is 35,000 and molecular weight of another 20 molecules is 40,000 then calculate the number average molecular weight (M-n) of the polymer.
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
The number average molecular mass M¯n and the weight average molecular mass M¯w of the synthetic polymers are related as:
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
Explain the determination of molecular mass of polymers by weight average molecular weight method.
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
Why molecular weight of polymers is taken as average molecular weight. How many types average molecular weight can be represented? Explain each type.
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Chemistry>Organic Chemistry>Polymers>Molecular Masses of Polymers
In a polymer sample, the molecular weight of 20 molecules is 20,000, molecular weight of 40 molecules is 30,000 and molecular weight of another 20 molecules is 40,000 then calculate the number average molecular weight (M-n) of the polymer.