Question

Consider such an example in which polyethylene sample containing 3000 chains with molecular
weights between 0 to 5000 g/mol, 9000 chains with molecular weights between 5000 to 10,000
g/mol, 8000 chains with molecular weights between 10,000 to 15,000 g/mol, and 3000 chains
with molecular weights between 15,000 to 20,000 g/mol. Determine both the number and weight
average molecular weights. Also determine the Poly Dispersity Index for given data.

Answer 1

Explanation:

Chap 15 Solns

5.4 (a) Compute the repeat unit molecular weight of polystyrene. ... (8)(12.01 g/mol) + (8)( 1.008 g/mol) = 104.14 g/mol ... between adjacent backbone chain atoms θ, as follows: sin. 2. L