Results 61 to 70 of about 13,308 (202)

Membrane Polymers for the Pervaporative Separation of Polar Organics: Methanol and Acetonitrile

Journal of Applied Polymer Science, Volume 143, Issue 12, March 20, 2026.
We tested seven polymers as membranes for the pervaporative separation of methanol‐acetonitrile mixtures. Chloroprene rubber, silicone rubber, and Matrimid showed effective separation by favoring acetonitrile transport, enabling azeotrope breaking. Plasticization was assessed using Broadband Dielectric Spectroscopy.
Jordan Janák, Jan Polena, Tereza Šimsová, Jonatan Šercl, Zdeněk Hrdlička, Tomáš Moucha, Štěpán Hovorka, Michal Fulem, Ondřej Vopička   +8 more
wiley   +1 more source

Water cluster triggered vitrification in HKUST‐1 MOF crystal under pressure

InfoMat, Volume 8, Issue 3, March 2026.
Water molecules in the pore centre form an oriented pentagonal water cluster via H‐bonding, which exerts a pulling effect on Cu–O(ligand) bond and induces bond cleavage. Meanwhile, the broken fragment flips into an unfavourable arrangement that prevents the rejoining of the bond, which finally causes a continuous porous MOF network in the glassy state.
Jianguo Sun, Chin Ho Kirk, Yunchuan Pu, Athulya S. Palakkal, Lewis Kien Juen Ting, Fei Wang, Kok Chan Chong, Tuo Wang, Saad Aldin Mohamed, Bin Liu, Jianwen Jiang, Anthony K. Cheetham, Dan Zhao, John Wang   +13 more
wiley   +1 more source

Concentration by pervaporation of brown crab volatile compounds from dilute model solutions: Evaluation of PDMS membrane [PDF]

, 2013
Pervaporation experiments with PERVAP™4060 membrane have been performed to study its ability to concentrate some aroma compounds identified in the brown crab boiling juice from a model dilute aqueous solution.
Baudot, Baudot, Blume, Cha, Clément, Cros, Cros, Delgado, Feng, García, Gascons Viladomat, Huang, Kujawski, Lipnizki, Marin, Martínez, Martínez, María Teresa Sanz, Olsson, Rodrigo Martínez, Sagrario Beltrán, She, She, Vane   +23 more
core   +1 more source

Ozonolysis of Lignin: From Extensive Degradation to Selective Ring‐Opening Oxidation

ChemSusChem, Volume 19, Issue 4, 25 February 2026.
Despite its potential as a renewable feedstock, lignin, a major component of plant cell walls and a by‐product of the pulp and paper industry, has long been underutilized. Historically, pulp mills employed ozonolysis, a powerful oxidative process, to delignify cellulosic fibers and break down lignin.
Alexandros E. Alexakis, Mika H. Sipponen
wiley   +1 more source

Development of Hybrid Organophilic Pervaporation and Distillation Method for Separation of Mixture Containing Heterogeneous Azeotropic

Chemical Engineering Transactions, 2023
The study is motivated by the industrial separation problem in the fine chemical and pharmaceutical industry, that is isobutanol removal from process wastewater. There are several options for separating the isobutanol-water system.
Andras Jozsef Toth, Huyen Trang Do Thi, Eniko Haaz   +2 more
doaj   +1 more source

Experimental methods in chemical engineering: Electrospinning

The Canadian Journal of Chemical Engineering, Volume 104, Issue 2, Page 556-568, February 2026.
Abstract Electrospinning produces micro‐ and nanofibres by forcing a polymeric solution through a fine needle in an electric field that produces a filament that accumulates onto a collector plate. The fibre morphology depends on solution properties, distance between needle and plate, feed rate, and electric field intensity.
M. Olga Guerrero‐Pérez, Tugce N. Eran, Gregory S. Patience   +2 more
wiley   +1 more source

Transport in nanofluidic systems: a review of theory and applications [PDF]

, 2010
In this paper transport through nanochannels is assessed, both of liquids and of dissolved molecules or ions. First, we review principles of transport at the nanoscale, which will involve the identification of important length scales where transitions in
Berg, A. van den, Eijkel, J.C.T., Sparreboom, W.   +2 more
core   +4 more sources

Sustainable Pretreatment of Food Waste for Enhanced Bioethanol Production and Improved Waste Management: A Review

Food Science &Nutrition, Volume 14, Issue 2, February 2026.
The graphical abstract illustrates the conversion of food waste biomass into bioethanol through integrated pretreatment strategies. Physical (mechanical, thermal, sonication), chemical (alkali, acidic, oxidative/ROS), and biological (fungal, bacterial, enzymatic) pretreatments enhance biomass breakdown.
Shaina Sharma, Sudarshan Sahu, Gursharan Singh, Shailendra Kumar Arya, Arulazhagan Pugazhendi, Ratih Setyaningrum, Karthikeyan Ravi, Sasikala Chinnappan, Ravishankar Ram Mani, Soon Woong Chang, Balasubramani Ravindran   +10 more
wiley   +1 more source

Novel view at hybrid membranes containing star macromolecules using neutron scattering and pervaporation dehydration of acetic acid

Materials & Design, 2020
Hybrid membranes based of polyphenylene oxide matrix and star macromolecules (up to 5 wt%) containing six polystyrene and six poly-2-vinylpyridine arms attached to a common fullerene C60 center were prepared and successfully used for pervaporation ...
Galina Polotskaya, Aleхandra Pulyalina, Vasily Lebedev, Gyula Török, Daria Rudakova, Ludmila Vinogradova   +5 more
doaj   +1 more source

Advancing the organosolv biorefinery. Part I: Vapor stripping–vapor permeation for the recovery of 1‐butanol from aqueous solutions

Biofuels, Bioproducts and Biorefining, Volume 20, Issue 1, Page 125-135, January/February 2026.
Abstract The industrial implementation of many lab‐scale biorefinery designs has been significantly hampered by the lack of availability of efficient and cost‐effective chemical recovery techniques. This is of particular importance for organic solvent‐based biorefineries such as those that use or produce aqueous butanol–water streams which, based on ...
J. Gavin Gaynor, Gavin L. Gaynor, Lucian A. Lucia   +2 more
wiley   +1 more source