Polymeric Ionic Liquids Derived from L-Valine for the Preparation of Highly Selective Silica-Supported Stationary Phases in Gas Chromatography

Abstract

A series of silica-supported polymeric ionic liquid (PIL)-based stationary phases derived from a vinylic L-valine ionic liquid monomer and divinylbenzene (DVB) as the crosslinking agent have been prepared and studied as gas chromatographic stationary phases. These coated gas chromatographic columns exhibited good thermal stabilities (230–300 °C) and high efficiencies (1700–2700 plates/m), and were characterized using a linear solvation parameter model in order to understand the effects of the amount of DVB on the features of the resulting composite systems. Their retention behavior and separation efficiencies were demonstrated using the Grob test. By tuning the crosslinking degree for the IL-derived stationary phase, the separation selectivity and resolution of different compounds were improved. The different retention behaviors observed for many analytes indicate that these stationary phases may be applicable as new types of GC stationary phases.

A Brief Overview of Polymers Science and Technology, in Spain

“…Marta Guembe-García José Miguel García, Saúl Vallejos New monomers derived from methacrylamide for amino acid polymer sensors [18] Esther Udabe Maria Forsyth, David Mecerreyes Ionic liquid monomers covalently integrated into an acrylic polymer coating for corrosion inhibition [19] Jorge González-Rodríguez Jaime González-Álvarez, Belén Altava, Santiago, Luis Silica-supported polymeric ionic liquid from a vinylic L-valine monomer and divinylbenzene as the chromatographic stationary phase [20] Javier Quílez-Bermejo Diego Cazorla-Amorós Synthesis of doped polyaniline for mesoporous carbon material [21] Beatriz Martínez-Sánchez Emilia Morallón Syntheis of phosphonated ring-substituted PANIs: electrochemical properties and computational calculations [22] Estefania Fernandez-Bartolome Rodrigo González-Prieto, Reyes Jiménez-Aparicio Coordination polymers from heteronuclear dirhodium-gold anionic complexes. Synthesis and crystal structure [23] Alexandra Muñoz-Bonilla Marta Fernández-García Hidrogels from new 2-hydroxyethyl methacrylate and a methacrylic monomer containing a lateral thiazole group with antimicrobial behavior [24] Francesco Gamardella Angels Serra Organocatalyzed poly(thiourethane) covalent adaptable networks able to be reshaped and recycled [25] Francesco Gamardella Silvia De la Flor New family of shape-memory actuators based on poly(thiourethane) networks: thermomechanical properties and shape-memory ability [26] Cenit Soto Pedro Prádanos, Antonio Hernández…”

Ionic Liquids: Recent Journey Through Chromatographic Separation

“…All these term values evoked largely on the fact of the successful employment of the above-mentioned ILs as high stability selective stationary phase in the gas chromatographic process. Recently, Luis et al prepared a series of silica-supported polymeric IL (PIL)-based stationary phases where they used a vinylic L-valine ionic liquid derivative (amino acid-based IL, AAIL) as a monomer and a divinyl benzene (DVB) as a cross-linking agent to provide the silica surface a homogeneous coating onto it to improve the thermal stability as well as column efficiency [25]. They utilized Abraham model to evaluate the solvation parameters of the stationary phases based on AAIL-DVB system they explored.…”

New Functionalized Ionic Liquids Based on POSS for the Detection of Fe3+ Ion

“…In recent years, ionic liquids (ILs) have been widely applied in numerous chemical engineering fields such as eletrochemical sensors [ 1 ], catalysis solvents [ 2 ], capacitors [ 3 ], lithium batteries [ 4 ], and fuel cells [ 5 ] due to their distinct properties, which include high ionic conductivity, non-flammability [ 6 ], a wide electrochemical stability window [ 7 ], negligible vapor pressure, and high thermal stability [ 8 ]. ILs have attracted lots of attention owing to their regulable structures [ 7 ] composed of various organic cations and inorganic cations [ 9 ], and chosen as ideal alternatives to traditional organic solvents in the field of materials chemistry [ 4 ] and the industrial field [ 10 ]. For example, due to their high ionic conductivity [ 11 ] and wide electrochemical stability windows, ILs have been applied as actuators in the emerging fields of lithium batteries [ 12 ], fuel cells, and electrolytes [ 13 ].…”