Why is the molecular weight obtained by SEC for most polymers just an approximation?
A. It’s not. The molecular weight you get is what it is.
B. Because it is only an estimation based upon polystyrene standards.
C. Accurate SEC calibration is difficult.
D. There is no procedure for obtaining accurate molecular weight data.
Answer:B
Why is the molecular weight obtained by SEC for most polymers just an approximation?
A. It’s not. The molecular weight you get is what it is. B. Because it is only an estimation based upon polystyrene standards. C. Accurate SEC calibration is difficult. D. There is no procedure for obtaining accurate molecular weight data.