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Development of an Automated Cross‐Fractionation Apparatus (TREF‐GPC) for a Full Characterization of the Bivariate Distribution of Polyolefins
Author(s) -
Ortin Alberto,
Monrabal Benjamin,
SanchoTello Juan
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200751102
Subject(s) - comonomer , fractionation , high density polyethylene , sizing , chromatography , materials science , process engineering , computer science , chemistry , polyethylene , engineering , composite material , monomer , organic chemistry , polymer
Summary: A compact automated instrument has been developed for measuring the bivariate distribution by TREF fractionation and subsequent GPC analysis of the fractions in a single run. The configuration of this instrument and its operation principles are covered here. High resolution TREF fractionation of HDPE and fast methods with overlapped GPC injections are also discussed. Future developments, such the addition of comonomer or molar mass sensitive detectors, as well as operation in GPC – TREF mode for broad MWD resins are outlined.