The U.S. Federal Register of April 17, 1987, contains a list of priority pollutants found at Superfund Sites. About half of these are volatile organic compounds (VOC’s), which are known to be toxic and/or carcinogenic in nature. Pervaporation is a membrane technology utilizing a dense non-porous polymeric film to separate the contaminated water from a vacuum source. A membrane is used that pref...

Clay nanocomposites have been synthesized by UV-curing with organic and waterbased resins. The effect of the chemical structure of the organophilic layer of the clay on the dispersibility in the photocurable resins, the photocuring efficiency and the final properties of the UV-cured nanocomposites are discussed.

Organophilic groups of coupling agents can be the key factor for electrical performance Boron Nitride (BN)/meta-aramid composite paper. In this article, four types triethoxy-silane with different organophilic groups, including mercapto-propyl (MP), glycidylether-propyl (GP), amino-propyl (AP) and trideca-fluoro-octyl (TFO) were studied. The structural properties modified papers compared, molecu...

Article history: Received 14 December 2016 Received in revised form 12 May 2017 Accepted 14 May 2017 Available online 1 July 2017 Alcohol-permselectivity pervaporation has been arousing increasingly more attention in bioalcohol production due to the advantages of environmental friendliness, low energy consumption and easy coupling with fermentation process. With the intrinsic feature of larger ...

The development of a reactive distillation process for the production of n-butyl acetate by transesterification of methyl acetate with n-butanol is presented. Thermodynamic aspects of the quaternary system n-butyl acetate – n-butanol – methyl acetate – methanol are discussed and UNIQUAC interaction parameters derived using the Dortmund Data Bank (DDB) are given. The reaction kinetics of the het...

In this paper, polydimethylsiloxane (PDMS) composite membranes that were supported using polyvinylidene fluoride (PVDF) microfiltration membrane were developed for the pervaporation (PV) of dimethyl carbonate (DMC) from a methanol solution. Experimental studies on the solubility and the diffusivity of pure DMC and methanol in the membrane were first measured. Higher DMC uptake indicates that th...

State Key Laboratory of Materials-Orien Chemistry and Chemical Engineering, Na University of Technology), 5 Xinmofan Ro [email protected]; Tel: +86 25 83172266 R&D Center for Membrane Technology, Dep Yuan University, Chung-Li 32023, Taiwan. 2654190 † Electronic supplementary information membranes, SEM images of POSS parti organophilic membranes for n-butanol DOI: 10.1039/c4ta05881j Cite this:...

Copolyamides with anthrazoline units in the backbone (coPA) were synthesized and dense nonporous films were prepared by solvent evaporation. Glass transition temperature, density, and fractional free volume were determined for the dense nonporous films composed of polyamide and two of its copolymers containing 20 and 30 mol % anthrazoline units in the backbone. Transport properties of the polym...

Pervaporation (PV) is a well-established membrane technique used in separation; especially dehydration of organic solvents. Along with other parameters such as permeate pressure and feed temperature; feed composition is an important parameter, which affects separation characteristics and membrane performance in pervaporation. In this paper, the separation characteristics of a hydrophilic polyvi...