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>Inverse gas chromatography of poly(n‐butyl methacrylate): Effect of flow rate on specific retention volume and detection of glass transition temperature
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Inverse gas chromatography of poly(n‐butyl methacrylate): Effect of flow rate on specific retention volume and detection of glass transition temperature
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机译：Inverse gas chromatography of poly(n‐butyl methacrylate): Effect of flow rate on specific retention volume and detection of glass transition temperature
AbstractFlow‐rate effect on specific retention volume (V g0) was studied by eluting aliphatic, aromatic, and chlorinated aliphatic probes at infinite dilution on poly(n‐butyl methacrylate) stationary phase at different temperatures from −10 to 150°C, encompassing both the glass transition (Tg) and the softening temperatures of the polymer. The effect became pronounced as the temperature was reduced below 100°C.V g0decreased with an increase in the flow rate: first linearly at temperatures between 70 and 100°C, and then nonlinearly at all temperatures below 70°C. The retention diagrams ofn‐pentane, isooctane, and cyclohexane alone enabled the detection of glass transition. Dichloromethane gave a linear retention diagram throughTgwithout showing the f
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