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

Question

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 (A) < 1 (B) > 1 (C) 1 (D) 0

Tardigrade Admin · Accepted Answer

Poly dispersity index (PDI) of the polymer =( barMw/ barMn) = (40000/30000) = 1.33

Q. 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

< 1

> 1

1

0

Poly dispersity index (PDI) of the polymer
$= \frac{M _{w} ˉ}{M ˉ _{n}} = \frac{40000}{30000} = 1.33$

Q. 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

< 1

> 1

1

0

Poly dispersity index (PDI) of the polymer =Mˉn​Mw​ˉ​​=3000040000​=1.33

Poly dispersity index (PDI) of the polymer
$= \frac{M _{w} ˉ}{M ˉ _{n}} = \frac{40000}{30000} = 1.33$