SOLVED: Calculate the molecular weight (number average and mass average) and polydispersity index (PDI) of polyethylene based on the graph below.Extra credit: Calculate the molecular weight (number average and mass average) and polydispersity index (PDI) of polyethylene based on the graph below (20 pts).30 weight fraction (%) 280,000 420,000 60,000 700,000 Molecular weight (g/mole)
SOLVED: Calculate the molecular weight (number average and mas…
Dec 31, 2024
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The PDI (polydisersity index) is the ratio of weight to number - average molecular masses, M w̅ / M n̅ . In natural polymers, which are generally monodispersed, PDI is ............. and in synthetic polymers which are always polydispersed, PDI is ............. because M w̅ is always ............. than M n̅ . Fill in the blanks.
The PDI (polydisersity index) is the ratio of weight to number - averag…
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