Basic Chromatographic Properties of Polyethylene Glycol-type, Polymer-based Monolithic Columns

Mori, Tomoko; Kubo, Takuya; Hosoya, Ken

doi:10.2116/analsci.26.311

Cited by 5 publications

(3 citation statements)

References 28 publications

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“…These observations strongly support the speculative illustration ( Fig. 4) [9,[12][13][14]. A separation factor  (k caffeine / k phenol ) reveals a hydrophilicity of the stationary phase in reversed-phase HPLC.…”

Section: Surface Modification To Gdma Based Particlessupporting

confidence: 85%

Effect of Solvents on the Surface Modification of Hydrophilic Macro-Porous Particles with an Ion-Exchange Monomer Having Both Anion and Cation Exchange Groups

et al. 2016

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An ion-exchange monomer including an anion exchange group and a cation exchange group, 2-methacryloyloxyethylphosphoryl choline (MPC) was introduced on the surface of uniformly sized, hydrophilic macro-porous polymer particle. We carefully studied several solvents utilized for the surface modification to elucidate solubility of the monomer as well as its polymer into each solvent. Based on the change in existing form of poly-MPC modified on the surface of stationary phases, ion-exchange properties of poly-MPC were controllable to result in interesting selectivity changes in HPLC.

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Section: Surface Modification To Gdma Based Particlessupporting

confidence: 85%

Effect of Solvents on the Surface Modification of Hydrophilic Macro-Porous Particles with an Ion-Exchange Monomer Having Both Anion and Cation Exchange Groups

et al. 2016

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“…Various types of porous polymers have been prepared by polymerization-induced phase separation (vinyl type monomers , click type polymerizations such as epoxyamine reaction [23][24][25][26][27][28][29][30][31][32][33][34], epoxy-thiol reaction [35][36][37], thiol-ene/yene [38][39][40][41][42][43][44], thiol-(meth) acrylate [45][46][47]) and temperature induced phase transfer . Applications of the porous polymers have been developing in various fields, for examples separation columns for liquid chromatography [1,2,[4][5][6][7][8][10][11][12][13][14][15][16][17][18]24,25,[27][28][29][30]32,…”

Section: Introductionmentioning

confidence: 99%

Morphology Control and Metallization of Porous Polymers Synthesized by Michael Addition Reactions of a Multi-Functional Acrylamide with a Diamine

et al. 2021

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Porous polymers have been synthesized by an aza-Michael addition reaction of a multi-functional acrylamide, N,N′,N″,N‴-tetraacryloyltriethylenetetramine (AM4), and hexamethylene diamine (HDA) in H2O without catalyst. Reaction conditions, such as monomer concentration and reaction temperature, affected the morphology of the resulting porous structures. Connected spheres, co-continuous monolithic structures and/or isolated holes were observed on the surface of the porous polymers. These structures were formed by polymerization-induced phase separation via spinodal decomposition or highly internal phase separation. The obtained porous polymers were soft and flexible and not breakable by compression. The porous polymers adsorbed various solvents. An AM4-HDA porous polymer could be plated by Ni using an electroless plating process via catalyzation by palladium (II) acetylacetonate following reduction of Ni ions in a plating solution. The intermediate Pd-catalyzed porous polymer promoted the Suzuki-Miyaura cross coupling reaction of 4-bromoanisole and phenylboronic acid.

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“…3,4 Polymer-based PEG monolithic capillary columns were also prepared and applied to hydrophobic interaction chromatography of proteins 5 as well as to reversed-phase chromatography of aromatic carboxylic acids and phenols. 6 In addition, the PEG moiety could form a helix-like conformation in the organic-aqueous media, leading to generation of different selectivity compared with common C18 stationary phases.…”

Section: Introductionmentioning

confidence: 99%

Polyoxyethylene as the Stationary Phase in Ion Chromatography

Lim

Takeuchi

2012

ANAL. SCI.

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The present article reviews the use of polyethylene glycol (PEG) or polyoxyethylene (POE) as the stationary phase for the separation of inorganic anions in ion chromatography and discusses about the retention mechanisms involved in the separation of anions on the novel stationary phases. PEG permanently coated on a hydrophobic stationary phase retained anions in the partition mode and allowed us to use high-concentration eluents because the retention of anions increased with increasing eluent concentration for most of the eluents. This situation was convenient to determine trace anions contained in seawater samples without any disturbance due to matrices. Chemically bonded POE stationary phases retained not only anions but also cations. Anions were retained in the ion-exchange mode, although POE chains possess no ion exchange sites. The retention behavior suggested that eluent cations could be trapped among multiple POE chains via ion-dipole interaction, and that the trapped cations worked as the anion-exchange sites. Anions could be separated using crown ether, i.e., cyclic POE, as the eluent additive with a hydrophobic stationary phase, where analyte anions were retained via electrostatic interaction with the eluent cation trapped on the crown ether.

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Basic Chromatographic Properties of Polyethylene Glycol-type, Polymer-based Monolithic Columns

Cited by 5 publications

References 28 publications

Effect of Solvents on the Surface Modification of Hydrophilic Macro-Porous Particles with an Ion-Exchange Monomer Having Both Anion and Cation Exchange Groups

Effect of Solvents on the Surface Modification of Hydrophilic Macro-Porous Particles with an Ion-Exchange Monomer Having Both Anion and Cation Exchange Groups

Morphology Control and Metallization of Porous Polymers Synthesized by Michael Addition Reactions of a Multi-Functional Acrylamide with a Diamine

Polyoxyethylene as the Stationary Phase in Ion Chromatography

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