Gels of syndiotactic polystyrene (sPS) in a binary mixture of 1,2-dichloroethane (DE) and 1-chlorotetradecane (CTD) have been investigated by attenuated total reflectance-Fourier transform infrared spectroscopy. Host-guest interactions into the clathrate phase induce not only the well-known selectivity in favor of the trans conformer but also a well-defined shift of the CH2 wagging mode of such conformer. Independent evaluations of the DCE content in the polymer-rich and polymer-poor phases, based on DCE conformer equilibrium and peak shift, give essentially identical results. As a consequence, an accurate evaluation of the amount and composition of the polymer-poor and polymer-rich phases of these gels from binary solvent mixtures can be achieved.

Evaluation of the Amount and Composition of the Polymer-Rich and Polymer-Poor Phases of Syndiotactic Polystyrene Gels with Binary Solvent Mixtures

Musto P
2003

Abstract

Gels of syndiotactic polystyrene (sPS) in a binary mixture of 1,2-dichloroethane (DE) and 1-chlorotetradecane (CTD) have been investigated by attenuated total reflectance-Fourier transform infrared spectroscopy. Host-guest interactions into the clathrate phase induce not only the well-known selectivity in favor of the trans conformer but also a well-defined shift of the CH2 wagging mode of such conformer. Independent evaluations of the DCE content in the polymer-rich and polymer-poor phases, based on DCE conformer equilibrium and peak shift, give essentially identical results. As a consequence, an accurate evaluation of the amount and composition of the polymer-poor and polymer-rich phases of these gels from binary solvent mixtures can be achieved.
2003
CHIMICA E TECNOLOGIA DEI POLIMERI
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/155742
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