Question

Calculate the degree of polymerization for a low-density polyethylene with a molecular
weight of 20,000 amu. Note: MW of ethylene is 28.05 g/mol.​

Answer 1

Answer:

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Explanation:

Divide the molecular weight of the polymer by the molecular weight of the monomer unit to calculate the degree of polymerization. If the molecular mass of tetrafluoroethylene is 120,000, its degree of polymerization is 120,000 / 100 = 1,200.

Answer 2

Answer:

The polymerization degree for low-density polyethylene measured is $713.01$.

Explanation:

Given,

The polyethylene's molecular weight = $20,000 amu$ = $20,000 g/mol$.

The ethylene's molecular weight = $28.05g/mol$

The polymerization degree =?

As we know,

• The degree of polymerization is the ratio of the weight of the polymer to the weight of the monomer unit of that polymer.
• Degree of polymerization = $\frac{Weight of polymer}{Weight of monomer}$

As given here,

• Polymer = Polyethylene
• Monomer unit  = ethylene

Therefore,

After putting the given values in the equation, we get:

• Degree of polymerization = $\frac{20000}{28.05}$
• Degree of polymerization = $713.01$

Hence, the polymerization degree = $713.01$.