Results 71 to 80 of about 359,140 (301)

Mimicking Block Copolymer Self‐Assembly with One‐Pot Synthesized Polyphosphoester Gradient Copolymers

open access: yesAdvanced Functional Materials, EarlyView.
Degradable Polyphosphoester (PPE) gradient copolymers (GCPs) are synthesized via one‐pot copolymerization. We show that GCPs self‐assemble into nanostructures like polymersomes, effectively mimicking the behavior of traditional BCPs. The gradient strength is key, with softer gradients favoring micelles.
Suna Azhdari   +7 more
wiley   +1 more source

Leaf Flavonoids of Chrozophora Neck (Euphorbiceae) Members in Markazi Province Using Chromatographical Methods

open access: yesJournal of Medicinal Plants, 2012
Background: Flavonoids are as one set of the polyphenolic compounds among secondary metabolites in different organs of plants that are used in plant chemotaxonomy and pharmacognosy.
M Noori, H Zare Mayvan, A Mazaheri
doaj  

Influence of way of finishing furniture segments on amount emissions VOCs

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010
The study deals with the influence of way of finishing furniture segments on amount emissions VOCs (volatile organic compounds). The so-called Volatile Organic Compounds (VOC) are among the largest pollution sources of both the internal and external ...
Petr Čech
doaj   +1 more source

Using Long‐Chain Polymechanophores to Explore the Differences in Mechanoactivation During Nozzle Flow and Ultrasonication

open access: yesAdvanced Functional Materials, EarlyView.
Flow through a nozzle is a common component of most fluid‐based polymer processing techniques such as spray drying, inkjet printing, extrusion. An ultrahigh molecular weight multi‐mechanophore system is used to probe the differences in the distribution of mechanical activation observed between nozzle flow and ultrasonication; the gold standard ...
Niamh Willis‐Fox   +4 more
wiley   +1 more source

Source apportionment and transport of pollutants within the South African paper recycling chain

open access: yesSouth African Journal of Science
Recycled paper is a valuable commodity that forms an intrinsic part of promoting sustainable resource utilisation. In this study, we aimed to investigate the possible sources and transport of semi-volatile organic pollutants in paper grades used in the ...
Nondumiso N. Mofokeng   +2 more
doaj   +1 more source

Separation of whey proteins for chromatography liquid

open access: yesScientia Agropecuaria, 2010
This paper describes and compares three chromatographic methods for the analysis and quantification of most abundant proteins in cheese whey, -lactalbumin and -lactoglobulin. The methods were: Reverse-phase high performance liquid chromatography, anion
Abraham D. Giraldo Zuñiga   +3 more
doaj   +1 more source

Separation of the Intermediates of D-Glucuronic Acid Metabolism by Paper Chromatography. [PDF]

open access: bronze, 1972
E. Puhakainen   +4 more
openalex   +1 more source

Dual‐Site Ru Single‐Atoms and RuP Nanoclusters on N, P, and B Co‐Doped Porous Carbon for Efficient Alkaline HER and AEM Water Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
Ru single atoms and RuP nanoclusters are co‐anchored in N, P, and B co‐doped porous carbon nanospheres via in situ carbonization/phosphidation of a boronate polymer precursor. RuP activates water, while nearby Ru single atoms accelerate H2 formation through H* transfer. The catalyst delivers low overpotential and high durability in alkaline HER and AEM
Xiaohong Wang   +13 more
wiley   +1 more source

Methanol Equilibrium Curves of Power Transformer Oil–Paper Insulation

open access: yesEnergies
To eliminate the problem of the aging of cellulose insulation in the manufacturing stage, a new drying method is being developed based on the use of methanol vapors.
Piotr Przybylek
doaj   +1 more source

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