Open AccessThe characterization of linear polyethylene SRM 1475. IX. Number average molecular weight of fractions by membrane osmometry
Author(s) -
James E. Brown,
Peter H. Verdier
Publication year - 1972
Publication title -
journal of research of the national bureau of standards. section a. physics and chemistry
Language(s) - English
Resource type - Journals
eISSN - 2376-5704
pISSN - 0022-4332
DOI - 10.6028/jres.076a.022
Subject(s) - osmometer , linear low density polyethylene , chemistry , characterization (materials science) , membrane , polyethylene , polymer chemistry , chromatography , polymer science , materials science , organic chemistry , nanotechnology , biochemistry
The number average molecular weights of a series of fractions of linear polyethylene have been determined using a high speed membrane osmometer. The M n values of the fractions, which were prepared by an elutinn technique, were used in GPC calibration and subsequent characterization of linear polyethylene SRM 1475. The molecular weights, measurement techniques, and the precision of the measurements are presented.