Porogen and Cross-Linking Effects on the Surface Area, Pore Volume Distribution, and Morphology of Macroporous Polymers Obtained by Bulk Polymerization

Santora, Brian P.; Gagné, Michel R.; Moloy, Kenneth G.; Radu, Nora S.

doi:10.1021/ma0004817

Cited by 132 publications

(89 citation statements)

References 15 publications

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“…They showed that in a divinylbenzene-styrene monolith, non-polar (n-hexane) porogen gives a higher surface area where for polar (methanol) porogen gives a smaller surface area. But with the use of more polar ethylene dimethacrylatemethylmethacrylate monolith, the solvent role was reversed, i.e., n-hexane gives smaller and methanol gives larger surface area (Santora, Gagné, Moloy, and Radu, 2001). Premstaller et al demonstrated that porogen mixture (decanol and tetrahydrofuran) forms large throughpores in poly(styrene) divinylbenzene.…”

Section: Effect Of Porogensmentioning

confidence: 99%

Advances in monolithic silica columns for high-performance liquid chromatography

2017

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In a monolithic column stationary phase contains a continuous porous material, sealed against the wall of a tube, instead of beads. Due to the decrease in chemical usage, sample usage, improved sensitivity, reusable frit-less columns and less back pressure monolithic column are very popular in the field of capillary electrochromatography (CEC). This review attempts to give an overview of three different types of monolithic columns, i.e. silica-based, polymer-based, and hybrid monolithic column. Moreover, the review also focuses on its advantages and applications over last 5 years.

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Section: Effect Of Porogensmentioning

confidence: 99%

Advances in monolithic silica columns for high-performance liquid chromatography

2017

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“…The porous structure and the surface area of MIPs can be defined from several factors, including functional monomers, cross-linkers, solvent and the synthesis conditions (Santora et al, 2001;Okay, 2000). It also has been stated that the selectivity of MIPs are strongly influenced by the types of functional monomer(s) used.…”

Section: Isotherm Studies Of Pyrogallol-imprinted Polymers Via Precipmentioning

confidence: 99%

Isotherm Studies of Pyrogallol-imprinted Polymers via Precipitation Polymerization

Othman

Yusof

Daik³

et al. 2017

IJTech

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Molecularly imprinted polymers (MIPs) have been the most convenient and selected methods in detection and extraction for many types of specific targets in various fields. MIPs were prepared by mixing template molecule with functional monomer in the presence of cross-linker, solvent and initiator. The selectivity of MIPs is strongly influenced by the types of functional monomer, solvent and polymerization process used. Pyrogallol-imprinted polymer (Py-IP) and nonimprinted polymer (NIP) were synthesized via precipitation polymerization using 4-vinylpyridine (4-VP), divinylbenzene (DVB) and azobisisobutyronitrile (AIBN) as functional monomer, cross-linker and initiator, respectively. Pyrogallol (Py) was used as a target molecule. The synthesized polymers were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and UV-Visible Spectroscopy (UV-Vis). In this study, adsorption capacity was measured by the dosage effect, contact time and selectivity study. Results showed that maximum adsorption capacity by Py-IP is above 50%. The Selectivity study shows that k' is >1, which indicates that Py-IP has a good selectivity towards pyrogallol. Therefore, it has a good potential to be used as an adsorbent.

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“…Macroporous highly cross-linked polymers are excellent matrices for immobilization transition metal (21), due to the permanent pore structure and the high surface area (typically 100-600 m 2 /g) and the accessibility of the active centres (22). Moreover, the attractive feature of highly cross-linked polymers is that they are resistant to harsh chemical environments, such as heat, organic solvents, strong acid or alkali.…”

Section: +mentioning

confidence: 99%

Electrogenerated chemiluminescence of ruthenium complex immobilized in a highly cross‐linked polymer and its analytical applications

Shen¹,

Li²,

Qi³

et al. 2008

Luminescence

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Electrogenerated chemiluminescence (ECL) of a ruthenium complex polymer modified carbon paste electrode and its analytical applications were investigated. The ruthenium complex polymer was prepared using bis(2,2-bipyridine) (4,4-dicarboxy-2,2-bipyridine) ruthenium(II). The ECL behaviours of ruthenium complex polymer modified carbon paste electrode were investigated in the absence and presence of tripropylamine (TPA). The modified carbon paste electrode exhibited long-term stability and fine reproducibility. The ECL intensity of the modified carbon paste electrode was linear with the concentration of TPA in the range 2.0 x 10(-6)-3.8 x 10(-3) mol/L, with a detection limit (S:N = 3) of 6 x 10(-7) mol/L. It was also found that raceanisodamine could enhance the ECL intensity of the modified electrode. The ECL intensity of the modified carbon paste electrode was linear with the concentration of raceanisodamine in the range 1.1 x 10(-5)-6.0 x 10(-4) mol/L, with a detection limit (S:N = 3) of 6 x 10(-6) mol/L. This work demonstrates that the entrapment of ruthenium complex in a highly cross-linked polymer is a promising approach to construct an ECL modified electrode with long-term stability and fine reproducibility. The modified electrode designed has a potential application in the ECL detector.

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Porogen and Cross-Linking Effects on the Surface Area, Pore Volume Distribution, and Morphology of Macroporous Polymers Obtained by Bulk Polymerization

Cited by 132 publications

References 15 publications

Advances in monolithic silica columns for high-performance liquid chromatography

Advances in monolithic silica columns for high-performance liquid chromatography

Isotherm Studies of Pyrogallol-imprinted Polymers via Precipitation Polymerization

Electrogenerated chemiluminescence of ruthenium complex immobilized in a highly cross‐linked polymer and its analytical applications

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