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A polymer is defined by its molecular weight distribution. Each weight distribution is characterized by a minimum of two parameters. Which are those?Question 2Answera.Dispersity and weight average molecular weightb.weight average molecular weight and intrinsic viscosityc.weight average molecular weight and monomer molecular weightd.weight of polymer and weight average molecular weight

Question

A polymer is defined by its molecular weight distribution. Each weight distribution is characterized by a minimum of two parameters. Which are those?Question 2Answera.Dispersity and weight average molecular weightb.weight average molecular weight and intrinsic viscosityc.weight average molecular weight and monomer molecular weightd.weight of polymer and weight average molecular weight

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Solution

The two parameters that characterize each weight distribution of a polymer are:

a. Dispersity and weight average molecular weight.

Dispersity (Đ) is a measure of the distribution of molecular mass in a given polymer sample. It indicates the variation in size of molecules in a batch.

Weight average molecular weight (Mw) is an average of the molecular weights of all the polymers in a mixture, where each polymer molecule contributes to the average in proportion to its weight.

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