Modern Size‐Exclusion Liquid Chromatography

Striegel, André M.; Yau, Wallace W.; Kirkland, J. J.; Bly, Donald D.

doi:10.1002/9780470442876

Cited by 439 publications

(257 citation statements)

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“…PSS standards were used for calibration for system 1-3, PS for systems 4-8, pullulan for system 9 and for PEG system 10 calibration. In universal calibration the logarithm of the molecular weight of standards is not plotted on the vertical axis of the SEC calibration curve, but the logarithm of the product of the molecular weight and the intrinsic viscosity [14]. This product is sometimes referred to as the hydrodynamic volume.…”

Section: Ms-qp or A Tof-ms Was Used For Detectionmentioning

confidence: 99%

Analytical methodology for sulfonated lignins

Brudin¹,

Schoenmakers²

2010

J of Separation Science

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There is a significant need to characterize and classify lignins and sulfonated lignins. Lignins have so far received a good deal of attention, whereas this is not true for sulfonated lignins. There is a clear demand for a better understanding of sulfonated lignins on a chemical as well as physical level. Many of the analytical methods have been developed with different goals in mind, for example, detection of sulfonated lignins in pulp-mill effluents, elucidation of structural changes in lignosulfonates during a pulping process, or identification of properties that may affect a formulation when sulfonated lignins are used as a dispersant. When sulfonated lignins are used in industrial applications, analytical data obtained using different techniques may be necessary to enable prediction of their behavior in the target application. In the present review, a critical discussion of established and promising analytical techniques for the characterization of sulfonated lignins is presented.

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Section: Ms-qp or A Tof-ms Was Used For Detectionmentioning

confidence: 99%

Analytical methodology for sulfonated lignins

Brudin¹,

Schoenmakers²

2010

J of Separation Science

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“…In SEC, the separation mechanism is based on molecular hydrodynamic volume. The majority of polymers are soluble in organic or aqueous solvents at ambient temperature and SEC experiments are conducted at ambient or slightly increased temperatures [5,6,80].…”

Section: Size Exclusion Chromatographymentioning

confidence: 99%

“…Typically, polyolefins are dissolved at temperatures between 130 and 160 C. To prevent degradation, stabilizers and antioxidants are added to the solvent. The most common solvents for polyolefin fractionations are 1,2,4-trichlorobenzene (TCB), 1,2-dichlorobenzene, decaline, and in some cases cyclohexane [5,6].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in High-Temperature Fractionation of Polyolefins

Pasch

Malik

Macko³

2012

Advances in Polymer Science

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“…[23] A triple detector GPC system, which consists of the combination of the sizebased separation by GPC with a light scattering detector (LS), a capillary viscometer and a concentration detector, allows the accurate determination of MMD, and also the study of the polymer molecular architecture. [24][25][26][27] Variation in the Mark-Houwink (MH) plot (log-log plot of intrinsic viscosity against molar mass), and in the related conformation plot (log-log plot of radius of gyration against molar mass), in correlation with SCB or comonomer content in polyethylene (PE) have been described in literature, [28,29] basically as a decrease in the intercept value with increasing SCB level. Application of MH plot to show chemical composition variations in P-E copolymers has also been demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Propylene‐1‐Butene Copolymer Composition by GPC with Online Detectors

Honghong

Guo

et al. 2015

Macromolecular Symposia

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Summary: The use of High Temperature Gel Permeation Chromatography (HT-GPC) with online infrared (IR) detector to analyze copolymer composition of propylene-1-butene (P-B) copolymer is investigated in this study. This technique is based on the measurement of the methyl to methylene ratio by an online infrared detector. This measurement is made possible by the highly discriminating power of a modern multiple band filter-based IR detector (IR5 MCT) to detect the P-B copolymer chemical structure. Also discussed is an alternative method, based on the application of the triple-detector GPC (GPC with IR, viscometer and light scattering coupled detectors) approach and Mark-Houwink plot.

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Modern Size‐Exclusion Liquid Chromatography

Cited by 439 publications

References 0 publications

Analytical methodology for sulfonated lignins

Analytical methodology for sulfonated lignins

Recent Advances in High-Temperature Fractionation of Polyolefins

Analysis of Propylene‐1‐Butene Copolymer Composition by GPC with Online Detectors

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