The polydispersity index (PDI) of a polymer i | vedclass

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(D) The polydispersity index $(PDI)$ is defined as the ratio of weight average molecular mass $(\overline{M}_{w})$ to number average molecular mass $(

Vedclass · Accepted Answer

$1000$

Vedclass · Answer

(D) The polydispersity index $(PDI)$ is defined as the ratio of weight average molecular mass $(\overline{M}_{w})$ to number average molecular mass $(\overline{M}_{n})$.$PDI = \frac{\overline{M}_{w}}{\overline{M}_{n}}$Given,$PDI = 1.25$ and $\overline{M}_{n} = 800$.Substituting the values: $1.25 = \frac{\overline{M}_{w}}{800}$.Therefore,$\overline{M}_{w} = 800 	imes 1.25 = 1000$.

The polydispersity index $(PDI)$ of a polymer is $1.25$. If $\overline{M}_{n}$ is $800$,what is its $\overline{M}_{w}$?

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