Synthesis of molecularly imprinted polymers by photo-iniferter polymerization under visible light

García-Soto, Mariano J.; Haupt, Karsten; Gonzato, Carlo

doi:10.1039/c7py01113j

Cited by 29 publications

(22 citation statements)

References 45 publications

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“…Spherical MIPs prepared by precipitation polymerization often display a broad size distribution due to uncontrollable chain transfer and termination reactions of free radical polymerization. To get monodisperse MIPs, living/controlled radical polymerization techniques [30][31][32][33][34][35] were adopted, in which reversible addition-fragmentation chain transfer (RAFT) polymerization was the most employed. RAFT precipitation polymerization (RAFTPP) can be carried out by introducing a suitable chain transfer agent (RAFT agent, normally a thiocarbonylthio or dithiobenzoate compound) into a conventional precipitation polymerization system.…”

Section: Spherical Mips By Precipitation Polymerizationmentioning

confidence: 99%

Designing and controlling the morphology of spherical molecularly imprinted polymers

Tian

Wang

et al. 2020

Mater. Adv.

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Section: Spherical Mips By Precipitation Polymerizationmentioning

confidence: 99%

Designing and controlling the morphology of spherical molecularly imprinted polymers

Tian

Wang

et al. 2020

Mater. Adv.

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“…The advantage of this approach was that resulting micellar nanoobjects could be tuned in size by controlling the DP of the second block. Molecularly imprinted polymers specific for testosterone, a model template, were obtained using blue (435 nm) or green (525 nm) light irradiation [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Random and Diblock Thermoresponsive Oligo(ethylene glycol)-Based Copolymers Synthesized via Photo-Induced RAFT Polymerization

et al. 2021

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Amphiphilic random and diblock thermoresponsive oligo(ethylene glycol)-based (co)polymers were synthesized via photoiniferter polymerization under visible light using trithiocarbonate as a chain transfer agent. The effect of solvent, light intensity and wavelength on the rate of the process was investigated. It was shown that blue and green LED light could initiate RAFT polymerization of macromonomers without an exogenous initiator at room temperature, giving bottlebrush polymers with low dispersity at sufficiently high conversions achieved in 1–2 h. The pseudo-living mechanism of polymerization and high chain-end fidelity were confirmed by successful chain extension. Thermoresponsive properties of the copolymers in aqueous solutions were studied via turbidimetry and laser light scattering. Random copolymers of methoxy- and alkoxy oligo(ethylene glycol) methacrylates of a specified length formed unimolecular micelles in water with a hydrophobic core consisting of a polymer backbone and alkyl groups and a hydrophilic oligo(ethylene glycol) shell. In contrast, the diblock copolymer formed huge multimolecular micelles.

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“…[ 25b,37 ] This is especially useful for functionalization of nanoscale pores with restricted pore accessibility. The development of such visible light sensitive iniferter molecules attained constantly increasing attraction since 2015, [ 38 ] and iniferter polymerization induced by visible light was demonstrated for the first time by the group of Qiao in 2015. [ 25a ]…”

Section: Introductionmentioning

confidence: 99%

Surface Plasmons and Visible Light Iniferter Initiated Polymerization for Nanolocal Functionalization of Mesoporous Separation Layers

John

Stanzel

Andrieu‐Brunsen

2021

Adv Funct Materials

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Although the technological relevance of mesoporous ceramic polymer hybrid materials is well accepted, missing functionalization concepts enabling 3D nanoscale local control of polymer placement into mesoporous materials, including thin films, and ideally using controlled polymerization techniques limit the application potential. Here, nanolocal functionalization of mesoporous separation layers using controlled, visible light iniferter initiated polymerization allowing responsive polymer functionalization locally limited to the irradiated spot is introduced. Thereby, two visible light sensitive iniferters, s-p-trimethoxysilylbenzyl-S´-dodecyltrithiocarbonate and 4-cyano-4-((dodecylsulfanylthiocarbonyl)sulfanyl)pentanoic acid, are developed for polymer functionalization of mesoporous films in a grafting from and a grafting through approach. 3D nanolocal polymer placement close to the proximity of the plasmonic field source is demonstrated by combining these visible light iniferter initiated polymerizations with optical near field modes, such as localized surface plasmon resonance (LSPR). As the location of the LSPR in mesoporous films can be controlled by placing metal alloy nanoparticles into these films and film thicknesses can be adjusted, this strategy is applied for precise positioning of polymers into mesoporous films with nanolocal control in three dimensions and thus reduces the gap in precision of functional group positioning between technological and biological nanopores.

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Synthesis of molecularly imprinted polymers by photo-iniferter polymerization under visible light

Abstract: A new prospect for the synthesis of molecularly imprinted polymers: photo-iniferter polymerization under visible light.

Cited by 29 publications

References 45 publications

Designing and controlling the morphology of spherical molecularly imprinted polymers

Designing and controlling the morphology of spherical molecularly imprinted polymers

Random and Diblock Thermoresponsive Oligo(ethylene glycol)-Based Copolymers Synthesized via Photo-Induced RAFT Polymerization

Surface Plasmons and Visible Light Iniferter Initiated Polymerization for Nanolocal Functionalization of Mesoporous Separation Layers

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