Question

Problem 5 (10pts) The following table lists molecular weight data for a polyethylene material. Compute (a) the number-average molecular weight, and (b) the degree of polymerization. Molecular Weight Range (g/mol) 8,000-20,000 20,000-32,000 32,000-44,000 44,000-56,000 56,000-68,000 68,000-80,000 80,000-92,000

this is the full table

Answer 1

Vem hyothetcamers molecule size s number and weht Frackens basis Moleculos We w.. м; 280 2000 32000 26000 5 o 3 o o 646O 145oo 1426C 4000 5600 5oooo 56 ooo- 68000 | 6 2 oo o Boooo -92000 6000 i and Wi ase takenem 430O Mw-53 720 Mn = 477 20 2lm« n = 47720

Ca Mn 28.a5