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The numerical evaluation of parameters in distribution functions of polymers from their molecular weight distributions
Author(s) -
Gloor Walter E.
Publication year - 1978
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1978.070220502
Subject(s) - polymer , exponential function , molar mass distribution , distribution (mathematics) , thermodynamics , materials science , mathematics , chemistry , physics , mathematical analysis , organic chemistry
It has been shown that the parameters in the log‐normal (LN) and generalized exponential (Gex) distributions can be evaluated if molecular weight ratios H and H z , or their equivalents, are known for a linear, unimodal homopolymer. It is suggested that better checks of observed and calculated values of M z can be obtained for such polymers as are characterized by m ≤ 0.15, by treating them as Gex rather than LN distributions.