Molar mass distribution

（重定向自Weight average molar mass）

In linear polymers the individual polymer chains rarely have exactly the same degree of polymerization and molar mass, and there is always a distribution around an average value. The molar mass distribution (or molecular weight distribution) in a polymer describes the relationship between the number of moles of each polymer species (N_i) and the molar mass (M_i) of that species. The molar mass distribution of a polymer may be modified by polymer fractionation.

单词	Weight average molar mass
释义	Weight average molar mass 英语百科 Molar mass distribution （重定向自Weight average molar mass） In linear polymers the individual polymer chains rarely have exactly the same degree of polymerization and molar mass, and there is always a distribution around an average value. The molar mass distribution (or molecular weight distribution) in a polymer describes the relationship between the number of moles of each polymer species (N_i) and the molar mass (M_i) of that species. The molar mass distribution of a polymer may be modified by polymer fractionation.
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