TWO-DIMENSIONAL LIQUID CHROMATOGRAPHY ANALYSIS OF SYNTHETIC POLYMERS USING FAST SIZE EXCLUSION CHROMATOGRAPHY AT HIGH COLUMN TEMPERATURE
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- Title
- TWO-DIMENSIONAL LIQUID CHROMATOGRAPHY ANALYSIS OF SYNTHETIC POLYMERS USING FAST SIZE EXCLUSION CHROMATOGRAPHY AT HIGH COLUMN TEMPERATURE
- Authors
- Im, K; Park, HW; Lee, S; Chang, T
- Date Issued
- 2009-05-22
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- In recent years, two-dimensional liquid chromatography(2D-LC) has been used increasingly for the analysis of synthetic polymers. A 2D-LC analysis provides richer information than a single chromatography analysis at the cost of longer analysis time. The time required for a comprehensive 2D-LC analysis is essentially proportional to the analysis time of the second dimension separation. Many of 2D-LC analyses of synthetic polymers have employed size exclusion chromatography (SEC) for the second-dimension analysis due to the relatively short analysis time in addition to the wide use in the polymer analysis. Nonetheless, short SEC columns are often used for 2D-LC analyses to reduce the separation time, which inevitably deteriorates the resolution. In this study, we demonstrated that high temperature SEC can be employed as an efficient second-LC in the 2D-LC separation of synthetic polymers. By virtue of high temperature operation (low solvent viscosity and high diffusivity of the polymer molecules), a normal length SEC column can be used at high flow rate with little loss in resolution. (C) 2009 Elsevier B.V. All rights reserved.
- Keywords
- 2D-LC analysis of synthetic polymer; IC x SEC; Temperature gradient interaction chromatography; High temperature size exclusion chromatography; FATTY ALCOHOL ETHOXYLATES; COMPLEX POLYMERS; ADSORPTION CHROMATOGRAPHY; NONIONIC SURFACTANTS; ISOCRATIC SEPARATION; HYDROPHILIC COPOLYMERS; ANIONIC-POLYMERIZATION; NORMAL-PHASE; POLYSTYRENE; BEHAVIOR
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28407
- DOI
- 10.1016/j.chroma.2009.03.072
- ISSN
- 0021-9673
- Article Type
- Article
- Citation
- JOURNAL OF CHROMATOGRAPHY A, vol. 1216, no. 21, page. 4606 - 4610, 2009-05-22
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