Question

Calculate the number-average molecular weight for a poly(vinyl chloride) for which the degree of polymerization is 21500.

Answer 1

The number-average molecular weight for a poly(vinyl chloride) is 1,343,750 g/mol.

Step-by-step explanation:

Molecular weight of the poly(vinyl chloride),
`CH_2=CHCl =M=62.5 g/mol`

Number average molecular weight of the polymer = M_a

Degree of polymerization = n = 21500

`(M_a)/(M)=n`

`M_a=n* m=21500* 62.5 g/mol=1,343,750 g/mol`

The number-average molecular weight for a poly(vinyl chloride) is 1,343,750 g/mol.