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What is PDI (Poly Dispersity Index ) ?...

What is PDI (Poly Dispersity Index ) ?

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The ratio between weight average molecular mass `(overline(M)_w)` and number average molecular mass `(overline(M)_n)` of a polymer is called Poly Dis-persity Index (PDI).
`PDI = (overline(M)_w)/(overline(M)_n)`
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