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Calculation of number‐average and weight‐average molecular weight of poly(vinyl chloride) polymers from intrinsic viscosity measurements
Author(s) -
McKinney Paul V.
Publication year - 1965
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.1965.070090220
Subject(s) - intrinsic viscosity , cyclohexanone , vinyl chloride , polymer , viscosity , molecular mass , polymer chemistry , thermodynamics , materials science , vinyl polymer , chloride , polyvinyl chloride , molar mass distribution , chemistry , organic chemistry , composite material , physics , polymerization , copolymer , enzyme , catalysis
Consistent data are available from several authors to provide equations for the calculation of number‐average and weight‐average molecular weights of commercial poly(vinyl chloride) polymers from determinations of intrinsic viscosity in cyclohexanone solution at 30°C. Reasonable approximations of the molecular weights can be calculated quickly by use of the following simple equations: M̄ n = ½[η] × 10 5 ; M̄ w = 0.9[η] × 10 5 .