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Determination of molecular weight for poly(vinyl butyral) using size exclusion chromatography/low‐angle laser light scattering (SEC/LALLS) in hexafluoroisopropanol
Author(s) -
Remsen Edward E.
Publication year - 1991
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.1991.070420223
Subject(s) - size exclusion chromatography , tetrahydrofuran , molar mass distribution , solvent , polymer , phase (matter) , materials science , light scattering , gel permeation chromatography , polymer chemistry , analytical chemistry (journal) , chromatography , chemistry , scattering , organic chemistry , optics , physics , composite material , enzyme
Size exclusion chromatography/low‐angle laser light‐scattering (SEC/LALLS) determinations of molecular weight for poly(vinyl butyral) (PVB) using hexafluoroisopropanol (HFIP) as the polymer solvent and chromatographic mobile phase are described. The use of HFIP provided aggregate‐free SEC/LALLS chromatograms from which molecular weight distribution averages were calculated. Comparison of SEC/LALLS molecular weights determined in HFIP with similar data obtained using tetrahydrofuran as the polymer solvent and chromatographic mobile phase indicated that the former is more generally applicable for PVB of different vinyl alcohol content.