Synthesis of Porous Emulsion-Templated Monoliths Using a Low-Energy Emulsification Batch Mixer

Forgacz, Claire; Caubet, Sylvain; Guer, Yves Le; Grassl, Bruno; Omari, Kamal El; Birot, Marc; Deleuze, Hervé

doi:10.1007/s10924-013-0575-1

Cited by 10 publications

(6 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For all samples, prepared either with Triton TM X-405 or CremophorV R EL, the calculated skeletal density d s is in the range 1.4-1.6, similar to the values obtained by helium pycnometry for the foams made by emulsion-templating, 9,10 and to the true density of Kraft lignin. These results indicate that no additional closed porosity is present.…”

Section: Materials Prepared With Surfactantssupporting

confidence: 78%

“…We have previously reported the preparation of foams from emulsion‐templated Kraft black liquor by crosslinking with epichlorohydrin (Figure ). However, others approaches may be followed to obtain porous monolithic materials from an aqueous solution of precursor.…”

Section: Resultsmentioning

confidence: 99%

“…Recently, we described macroporous interconnected monoliths from emulsion‐templated Kraft black liquor . Here, we present for the first time the preparation of macroporous organic materials, directly from industrial black liquor, where porosity is generated without emulsion templating or gas blowing methods.…”

Section: Introductionmentioning

confidence: 99%

“…7 Recently, we described macroporous interconnected monoliths from emulsion-templated Kraft black liquor. [8][9][10] Here, we present for the first time the preparation of macroporous organic materials, directly from industrial black liquor, where porosity is generated without emulsion templating or gas blowing methods. The natural polymers present in black liquor were crosslinked by reaction with epichlorohydrin to produce rigid monoliths after removal of water.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis of macroporous monolithic materials from a waste renewable source

Forgacz

Birot

Deleuze

2014

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Interconnected porous monolithic materials can be directly obtained from non‐templating methods by reacting raw Kraft black liquor with epichlorohydrin either in the presence or not of surfactant, whereas extracted lignin leads to non‐porous materials. In the presence of a surfactant, micelles organization takes place and porosity of 40–60% can be achieved. Without surfactant, chemically induced phase separation occurs, giving materials with agglomerated nodules morphology. Carbonization followed by activation with CO2 yield monolithic micro/mesoporous carbons with surface area of 300 m2 g−1. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41215.

show abstract

Section: Materials Prepared With Surfactantssupporting

confidence: 78%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of macroporous monolithic materials from a waste renewable source

Forgacz

Birot

Deleuze

2014

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…28 HIPEs prepared by different shearing methods would have different properties, which mainly performed in the difference in viscosity and stability of the emulsion and in the pore size and mechanical properties of the resulting polyHIPEs. Recent studies have focused on various shear-related issues, including a two-rod batch mixer 29,30 and stirred cell membrane emulsification. 31 However, although it is noted that the shearing methods reported normally prepare HIPEs in a batched way, a continuous and large-scale preparation method for fabrication of HIPEs is still to be explored.…”

Section: Introductionmentioning

confidence: 99%

Production of High Internal Phase Emulsion with a Miniature Twin Screw Extruder

et al. 2019

View full text Add to dashboard Cite

Emulsions are traditionally prepared by batched emulsifying an oil phase and aqueous phase with a magnetic/mechanical stirrer, homogenizer, or ultrasonic machine, etc. Herein, high internal phase emulsions (HIPEs) produced with a miniature twin screw extruder were first investigated. Adding an oil phase (the mixture of styrene, divinylbenzene, and span 80) and aqueous phase to the inlet of a miniature twin screw extruder, a series of white and viscous HIPEs were obtained at the outlet of the extruder. With the screw rotation speed and the surfactant content varied respectively in the ranges of 50–200 rpm and 5–20%, a series of HIPEs having uniform droplet size were produced. Polymerizing these HIPEs caused a series of polymerized HIPES, which have a well-defined open-cell structure. The method developed herein shows that it is possible to prepare emulsions with oil and water by twin screw extrusion. Also, it may also cause a continuous preparation of HIPEs when the miniature twin screw extruder was replaced by an industrial extruder.

show abstract