Characterization of polystyrene and polyisoprene by normal-phase temperature gradient interaction chromatography
SCIE
SCOPUS
- Title
- Characterization of polystyrene and polyisoprene by normal-phase temperature gradient interaction chromatography
- Authors
- Lee, W; Cho, D; Chun, BO; Chang, T; Ree, M
- Date Issued
- 2001-02-23
- Publisher
- ELSEVIER SCIENCE BV
- Abstract
- Temperature gradient interaction chromatography (TGIC) is applied to the characterization of polyisoprene (PI) and polystyrene (PS) using normal-phase (NP) stationary phase - bare silica or diol bonded silica. Tetrahydrofuran-isooctane mixtures are used as a mobile phase. PI and linear and star shaped PS samples are successfully fractionated in terms of the molecular mass with a high resolution comparable to that of reversed-phase (RP) HPLC. Temperature dependence of the retention shows that the enthalpy of adsorption of PS to the stationary phase is exothermic. In addition. some characteristic features of the NP-TGIC system relative to those of RP-TGIC are presented, which include a high sensitivity on the polar end group and the simultaneous size-exclusion chromatographic and TGIC characterization of PS and PI mixtures. (C) 2001 Elsevier Science B.V. All rights reserved.
- Keywords
- temperature gradient interaction chromatography; polymers; polystyrene; polyisoprene; PERFORMANCE LIQUID-CHROMATOGRAPHY; SIZE-EXCLUSION CHROMATOGRAPHY; REVERSED-PHASE; MOLECULAR-WEIGHT; RETENTION BEHAVIOR; POLY(METHYL METHACRYLATE); MASS POLYSTYRENES; POLYMER MIXTURES; SEPARATION; ELUTION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19689
- DOI
- 10.1016/S0021-9673(00)01163-8
- ISSN
- 0021-9673
- Article Type
- Article
- Citation
- JOURNAL OF CHROMATOGRAPHY A, vol. 910, no. 1, page. 51 - 60, 2001-02-23
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