GPC-IR0 pages

GPC-IR

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HT GEL PERMEATION CHROMATOGRAPHY

Fully-automated high temperature GPC/SEC
system with highly sensitive Infrared Detector
for Molar Mass Distribution and chemical
composition analysis of Polyolefins.

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Light Scattering
Viscometer
Infrared
Relative detector response

With over 20 years of experience in the development of high
temperature instruments for polyolefin analysis, Polymer Char offers
the GPC-IR instrument, a reliable multiple detector Gel Permeation
Chromatography (GPC) system dedicated to the characterization of
polyolefins. It incorporates high-stability infrared (IR) detectors with
outstanding baseline and simultaneous detection of total concentration
and chemical composition, which adds a new dimension to the GPC
analysis. The built-in IR detection provides the most comprehensive
characterization of polymers such as HDPE, PP, LDPE, LLDPE, EP
copolymers, EVA, EBA and others in the group of polyolefins.

Log M

Log Mw

Two different infrared detectors are available: the most modern IR5 MCT,
with enhanced sensitivity and stability to measure concentration and
chemical composition (SCB/1000TC); and the classic IR4, which offers
a broader spectral range enabling analysis of the carbonyl group
containing copolymers. Other detectors that can be coupled to the
GPC-IR system are Polymer Char’s four-capillary bridge viscometer and
a Multi-Angle Light Scattering (DAWN HELEOS II™ by Wyatt
Technology ), for the determination of absolute molar mass and study
of Long Chain Branching (LCB). Thus, becoming the most complete,
four-detectors, instrument for polyolefin analysis.

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Retention volume (mL)

Triple Detection Analysis. The triple detector GPC-IR® results of a 1476 LDPE resin.

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Finally, data processing becomes simple and powerful thanks to the
GPC One Software, a comprehensive calculations software package
developed in collaboration with the industry leaders that integrates all
detectors’ signals.
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Polymer Char’s GPC-IR represents a new generation of instruments
for polyolefin characterization in terms of repeatability, automation,
and reliability.
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Find out more at www.polymerchar.com/GPC-IR

Polymer Characterization, S.A.

Gustave Eiffel, 8 Paterna
E-46980 Valencia, Spain

T.: +34 96 131 81 20
F.: +34 96 131 81 22

info@polymerchar.com
www.polymerchar.com

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Log M

Molar Mass-Composition interdependence of three diferent
Ethylene-Propylene copolymers with similar MWD.

Ethylene (Wt%)

Polymer Char’s GPC-IR automatically performs all sample preparation
steps including the initial filling of vials with solvent and in-line filtration.
As a result, neither vial transfer nor manual handling of solvent is
required throughout the whole analytical process. Other key automation
features are incorporated to overcome historical problems usually arisen
when working with high temperature GPC/SEC analysis, including the
company’s Sample Care protocols that preserve the sample integrity
along the whole analytical cycle.
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