Abstract
Temperature gradient interaction chromatography (TGIC) is a powerful technique for molecular characterization of polymers, in which the interaction strength is controlled by varying the column temperature. In the present paper, the direction of temperature gradient for normal-phase mode TGIC in poly(methyl methacrylate) (PMMA) fractionation was studied by using System I (column: cyano-modified silica // eluent: 1,4-dioxane/n-hexane) and System II (bare silica // 1,4-dioxane/CH2Cl2), respectively. It was found that PMMA samples were separated by positive and negative temperature gradients using the respective systems. The results were also discussed theoretically.
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Matsumoto, H., Kawai, T. & Teramachi, S. Direction of Temperature Gradient and Retention Mechanism in Normal-Phase Temperature Gradient Interaction Chromatography for Poly(methyl methacrylate) Fractionation. Polym J 39, 458–463 (2007). https://doi.org/10.1295/polymj.PJ2006181
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DOI: https://doi.org/10.1295/polymj.PJ2006181
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