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The P Dispersity Index (PDI) of a polymer is ( M-w= weight average molecular mass and M-n= number average molecular mass)

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Important Questions on Polymers

HARD

Which option is correct for synthetic polymer?

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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.
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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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The polydispersity index of the polymer is always:
EASY
What is PDI (Poly Dispersity Index)?
MEDIUM
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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The most suitable method for determination of the molecular mass of polymer is?
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Molecular weight of the polymer can be controlled by
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Number average molecular mass, Mn- and weight average molecular mass M -w of synthetic polymers are related as
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For natural polymers PDI is generally
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What is the average molecular mass of drugs?
EASY
What is the polydispersity index of polymer if the mass average molecular mass & number average molecular mass of a polymer are respectively 40,000 and 30,000?
EASY
The poly dispersity index (PDI) of the polymer is given by which equation if M¯W is the weight average molecular weight and M¯n is the number average molecular weight of a polymer.
HARD
Write formula for number average molecular weight (M-n).
EASY
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
HARD
Why molecular weight of polymers is taken as average molecular weight. How many types average molecular weight can be represented? Explain each type.
HARD
What is polydispersity index? Explain.
MEDIUM
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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The number average molecular mass and mass average molecular mass of a polymer are respectively 30,000 and 40,000. The poly dispersity index of the polymer is