Determination of short-chain branching content in polyethylene by pyrolysis comprehensive multidimensional gas chromatography using low thermal mass column technology

被引：10

作者：

Eckerle, Patric ^{[2
]}

Pursch, Matthias ^{[2
]}

Cortes, Hernan J. ^{[1
]}

Sun, Kefu ^{[3
]}

Winniford, Bill ^{[3
]}

Luong, Jim

机构：

[1] Dow Chem Co USA, Analyt Sci, Midland, MI 48667 USA

[2] Dow Deutschland GmbH, Analyt Sci, Rheinmunster, Germany

[3] Dow Chem Co USA, Analyt Sci, Freeport, TX 77541 USA

来源：

JOURNAL OF SEPARATION SCIENCE | 2008年 / 31卷 / 19期

关键词：

Comprehensive multidimensional chromatography; GC x GC; Polyethylene; Programmed temperature vaporizer; Pyrolysis-GC x GC;

D O I：

10.1002/jssc.200800218

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A research effort was undertaken to utilize the pyrolysis process to create fragments of polyethylene that could be indicative of branching, and allow quantitiation of said short-chain branches by pyrolysis comprehensive 2-D GC (Py-GC x CC). Several strategies for sample introduction and pyrolysis such as the in-column pyrolysis device and the programmed temperature vaporizer (PTV) were studied. The chromatographic separations were executed using low-thermal mass (LTM) comprehensive 2-D CC (GC x GC). A series of polyethylene-co-hexene samples were analyzed and a linear correlation of 1-hexene content with branching peak ratio was found. Correlation coefficients were determined as 0.97 for the measurements performed.

引用

页码：3416 / 3422

页数：7

共 20 条

[1] Recent developments in comprehensive two-dimensional gas chromatography (GC X GC) - IV. Further applications, conclusions and perspectives [J].

Adahchour, M. ;

Beens, J. ;

Vreuls, R. J. J. ;

Brinkman, U. A. Th. .

TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2006, 25 (08) :821-840

[2]

*AG TECHN, 2007, PUBL AG TECHN

[3]

Bertsch W, 2000, HRC-J HIGH RES CHROM, V23, P167

[4] Development and applications of an automated in-column pyrolysis Gas Chromatography Mass Spectrometry system [J].

Beyer, D ;

Eckerle, P ;

Cortes, H ;

Engewald, W ;

Dettmer, K .

CHROMATOGRAPHIA, 2005, 62 (7-8) :417-422

[5] Quantifying short chain branching microstructures in ethylene 1-olefin copolymers using size exclusion chromatography and Fourier transform infrared spectroscopy (SEC-FTIR) [J].

DesLauriers, PJ ;

Rohlfing, DC ;

Hsieh, ET .

POLYMER, 2002, 43 (01) :159-170

[6] In-column pyrolysis:: A new approach to an old problem [J].

Górecki, T ;

Poerschmann, J .

ANALYTICAL CHEMISTRY, 2001, 73 (09) :2012-2017

[7] Low thermal mass gas chromatography: Principles and applications [J].

Luong, J ;

Gras, R ;

Mustacich, R ;

Cortes, H .

JOURNAL OF CHROMATOGRAPHIC SCIENCE, 2006, 44 (05) :253-+

[8] Principles and applications of comprehensive two-dimensional gas chromatography [J].

Marriott, P ;

Shellie, R .

TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2002, 21 (9-10) :573-583

[9]

Mustacich R, 2001, U.S. Patent, Patent No. [6, 209, 386, 6209386]

[10]

Mustacich R, 2001, U.S. Patent, Patent No. 6217829

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