Shaping of porous polymers

S, Das; Ben, Teng; Qiu, Shilun

doi:10.1016/j.polymer.2020.122928

Cited by 11 publications

(9 citation statements)

References 88 publications

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“… 46 , 47 Many porous polymers also have been reported, but the fabrication of porous nanofibers remains challenging. 48 , 49 …”

Section: Discussionmentioning

confidence: 99%

“…Mesoporous materials with selectivity are desired as adsorbents for oils and dyes. Zeolites, for instance, are well-known porous materials with pores 1 nm or less in size; however, mesoporous zeolites with >10 nm pores have been reported to exhibit larger molecular sieving effects. , Many porous polymers also have been reported, but the fabrication of porous nanofibers remains challenging. , …”

Section: Discussionmentioning

confidence: 99%

“…46,47 Many porous polymers also have been reported, but the fabrication of porous nanofibers remains challenging. 48,49 The fabrication of PS nanofibers with porous surfaces via electrospinning has been reported. Changing the humidity during electrospinning of the PS/DMF system 50,51 and changing the mixing ratio of the DMF/THF solvent 52,53 affect the solvent volatilization rate to induce the microstructure of the PS fiber surface.…”

Section: ■ Discussionmentioning

confidence: 99%

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Electrospun Porous Nanofibers with Imprinted Patterns Induced by Phase Separation of Immiscible Polymer Blends

et al. 2022

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Nanofibrous nonwoven fabrics have attracted attention as porous adsorbents with high specific surface areas for the safe and efficient treatment of spilled organic dyes and petroleum. For this purpose, a method of fabricating porous nanofibers with high specific surface areas would be highly beneficial. In this study, the phase separation in nanofibers electrospun from blended solutions of immiscible polymers [poly(styrene) (PS) and poly(vinylpyrrolidone) (PVP)] was investigated. The removal of PVP as a sacrificial polymer afforded the imprinting of mesopores (40–70 nm) in the PS nanofibers. The effects of solution composition (PS/PVP in N , N -dimethylformamide) on the structure formation in the fibers were investigated. The nanofibers thus obtained could selectively adsorb low-molecular-weight hydrophobic dyes, such as Nile Red and Oil Red O. Thus, it is expected that the combined approach of electrospinning of immiscible polymer blends and phase separation-induced patterning can be applied to the fabrication of functional nanofibers for diverse applications.

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“… 46 , 47 Many porous polymers also have been reported, but the fabrication of porous nanofibers remains challenging. 48 , 49 …”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: ■ Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Electrospun Porous Nanofibers with Imprinted Patterns Induced by Phase Separation of Immiscible Polymer Blends

et al. 2022

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“…When the pH value is alkaline, the solution contains a large amount of OH-, it may exist the competitive adsorption with MB and MO. 33,34 When the pH value is higher 7, the adsorption capacity for MB and MO slowly decreased. So, the optimal pH value is 6 for MB and MO.…”

Section: The Inuence Of Ph On the Adsorption Performance Of Tpp-pp T...mentioning

confidence: 99%

Efficient adsorption of methyl orange and methyl blue dyes by a novel triptycene-based hyper-crosslinked porous polymer

Bao

Hua

et al. 2022

RSC Adv.

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“…Porous polymerics combine the advantages of porous materials and polymers, arousing rapidly growing interest. [ 16–18 ] Porous polymerics exhibit the advantages of high specific surface area and high porosity, as well as excellent machining properties. In addition, the diversity of polymer synthesis routes also contributes to the design and construction of porous polymers with pore skeletons or functional groups on the pore surface.…”

Section: Introductionmentioning

confidence: 99%

Biomass‐Derived Acetylenic Polymer Monoliths Prepared by High Internal Phase Emulsion Template Method and Used for Adsorbing Cationic Pollutants

Yang

Yong

Zhao

et al. 2021

Macro Chemistry & Physics

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A new type of biobased porous polymer monolith is prepared starting from biomass, ferulic acid (FA), via high internal phase emulsion (HIPE) template polymerization method. FA is transferred into an acetylenic monomer, which undergoes catalytic HIPE polymerization, eventually forming a porous monolith named as PolyHIPE. The phenolic hydroxyl groups in the monolith are functionalized with sodium hydroxide, forming PolyHIPE‐Na+ and meanwhile transforming the initial hydrophobic monolith into a hydrophilic one. The formation and structure of the monoliths are characterized with Fourier transform infrared (FT‐IR), NMR, and scanning electron microscope (SEM) techniques. The adsorption capacity of the monoliths is further investigated. PolyHIPE‐Na+ exhibits high adsorption capacity toward methylene blue (MB) and cetyltrimethylammonium bromide (CTAB) from simulated wastewater. The adsorption behavior of PolyHIPE‐Na+ is found to fit the pseudo second order kinetic model better. The adsorption isotherm can be well described by the Langmuir isotherm model. The maximum adsorption capacity for MB and CTAB are 1016 and 1390 mg g−1, respectively. The biobased FA derived monolithic adsorbent also shows desirable recycling usability and stability in adsorption−desorption cycles.

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Shaping of porous polymers

Cited by 11 publications

References 88 publications

Electrospun Porous Nanofibers with Imprinted Patterns Induced by Phase Separation of Immiscible Polymer Blends

Electrospun Porous Nanofibers with Imprinted Patterns Induced by Phase Separation of Immiscible Polymer Blends

Efficient adsorption of methyl orange and methyl blue dyes by a novel triptycene-based hyper-crosslinked porous polymer

Biomass‐Derived Acetylenic Polymer Monoliths Prepared by High Internal Phase Emulsion Template Method and Used for Adsorbing Cationic Pollutants

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