Results 31 to 40 of about 131,598 (304)

Synthesis and characterization of amphiphilic block copolymers by transesterification for nanoparticle production

Polímeros
Poly(ε-caprolactone)-block-poly(ethylene glycol)-poly(ε-caprolactone) (PCL-PEG-PCL, triblock) and Poly(ε-caprolactone)-block-(poly(ethylene oxide)−poly(propylene oxide)−poly(ethylene oxide)-poly (ε-caprolactone) (PCL-PEO-PPO-PEO-PCL, pentablock ...
André Rocha Monteiro Dias, Beatriz Nogueira Messias de Miranda, Houari Cobas-Gomez, João Guilherme Rocha Poço, Mario Ricardo Gongora Rubio, Adriano Marim de Oliveira   +5 more
doaj   +1 more source

ULTRAFILTRATION AS PRETREATMENT OF REVERSE OSMOSIS: LOW FOULING ULTRAFILTRATION MEMBRANE PREPARED FROM POLYETHERSULFONE–AMPHIPHILIC BLOCK COPOLYMER BLEND

Reaktor, 2009
This paper demonstrates the preparation of polyethersulfone (PES) ultrafiltration (UF) membranes via wet phase inversion method using either poly(ethylene oxide)-b-poly(propylene oxide)-b- poly(ethylene oxide) (Pluronic®, Plu) or polyethylene glycol (PEG)
Heru Susanto, Luqman Buchori, Siswo Sumardiono, Berkah Fajar, Titik Istirokhatun, I Nyoman Widiasa   +5 more
doaj   +1 more source

Compositional Analysis of the High Molecular Weight Ethylene Oxide Propylene Oxide Copolymer by MALDI Mass Spectrometry

, 2012
The composition of narrow distribution poly ethylene oxide-propylene oxide copolymer (Mw ~ 8700 Da) was studied using matrix assisted laser desorption ionization (MALDI) mass spectrometry.
Houshia, Orwa Jaber, Wilkins, Charles
core   +1 more source

Characterization of ultrafiltration membranes by tracer's retention:Comparison of methods sensitivity and reproducibility [PDF]

, 2010
Previous studies have shown that the absolute membrane cut-off and the value quoted by the manufacturers may be very different because of differences in methodologies and testing conditions.
Causserand, Christel, Lorain, Olivier, Pierre, Gwenaelle, Rapenne, Sophie, Sauvade, Patrick, Schrotter, Jean-Christophe   +5 more
core   +2 more sources

Effect of block composition on thermal properties and melt viscosity of poly[2-(dimethylamino)ethyl methacrylate], poly(ethylene oxide) and poly(propylene oxide) block co-polymers

eXPRESS Polymer Letters, 2011
To modify the rheological properties of certain commercial polymers, a set of block copolymers were synthesized through oxyanionic polymerization of 2-(dimethylamino)ethyl methacrylate to the chain ends of commercial prepolymers, namely poly(ethylene ...
doaj   +1 more source

Short-Chained Oligo(Ethylene Oxide)-Functionalized Gold Nanoparticles: Realization Of Significant Protein Resistance [PDF]

, 2017
Protein corona formed on nanomaterial surfaces play an important role in the bioavailability and cellular uptake of nanomaterials. Modification of surfaces with oligoethylene glycols (OEG) are a common way to improve the resistivity of nanomaterials to ...
Riley, Kathryn R., Sims, C. M., Vanderah, D. J., Walker, M. L., Wood, I. T.   +4 more
core   +2 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Effects of Hydrothermal Treatment and Template Removal on the Adsorption and Structural Properties of SBA-16 Mesoporous Silica

Adsorption Science & Technology, 2007
The evolution of the adsorption and structural properties of large-pore SBA-16 silica samples was studied in relation to hydrothermal treatment and template removal procedures.
Pasquale F. Fulvio, Bogna E. Grabicka, Rafal M. Grudzien, Mietek Jaroniec   +3 more
doaj   +1 more source

Preparation and Characterization of New Poly (Ether-Ester-Urethane) Membrane and Its Comprehensive Potential Evaluation for Natural Organic Matter Rejection from Water [PDF]

Iranian Journal of Chemistry & Chemical Engineering
In this study, the novel poly (ether-ester) urethane membranes, synthesized from poly(dioxanone) (PDO) and poly (ethylene glycol) (PEG) triblock copolymers, were introduced for the humic acid removal as a model of natural organic matter from aqueous ...
Mohammad Safdari, Mostafa Narimani, Majid Dastanian, Ali Borsalani   +3 more
doaj   +1 more source

Bio‐Orthogonally Crosslinked Supramolecular Polymer Bottlebrush Hydrogels for Long‐Term 3D Cell Culture

Advanced Functional Materials, EarlyView.
Fibrous benzenetrispeptide (BTP) hydrogels, fabricated via strain‐promoted azide‐alkyne cycloaddition (SPAAC) crosslinking, form robust, bioinert networks. These hydrogels can support 3D cell culture, where cell viability and colony growth depend on the fiber content.
Ceren C. Pihlamagi, David Pretzel, Peer Nölte, Kourosh Rezaei, Ulrich S. Schubert, Johannes C. Brendel   +5 more
wiley   +1 more source