Results 61 to 70 of about 370,732 (339)

Modificación superficial de micro fibras de celulosa obtenidas a partir de bagazo de caña de azúcar usando silanización

open access: yesInformador Técnico, 2014
Se produjeron microfibras de bagazo de caña de azúcar que exhiben repelencia al agua tras su pretratamiento y modificación superficial con hexadeciltrimetoxisilano.
Fernando Luna Vera   +3 more
doaj   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

open access: yesAdvanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr   +7 more
wiley   +1 more source

Composition, properties, stability and thermal behavior of tamarind (Tamarindus indica) seed oil

open access: yesGrasas y Aceites, 2019
The composition, thermal stability and phase behavior of tamarind (Tamarindus indica) seed oil were analyzed to contribute to the exploration of their potential uses.
M. G. Chacón-Fernández   +4 more
doaj   +1 more source

Effect of Zinc Oxide Nanoparticles on Mechanical, Thermal and Biodegradability of Gelatin-Based Biocomposite Properties Films [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2019
Hypothesis: The basic limitation of biopolymers compared to the petroleum-based polymers is their weak physical and mechanical properties. In recent years, efforts have been made to properly incorporate nanoparticles into the polymer to reduce the ...
Sahar Eshagh   +3 more
doaj   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin   +7 more
wiley   +1 more source

The Use Of XRPD And ATR-FTIR In The Screening Of Three Component Co-amorphous Systems Created Via A Melt-Quench Method

open access: yesBritish Journal of Pharmacy, 2018
Multiple three-component co-amorphous systems have been created via a melt- quench method. This has been confirmed by a single glass transition in the individual DSC traces and then reinforced by X-ray diffraction data, which show an absence of ...
Benjamin Edgar   +2 more
doaj   +1 more source

Thermal Properties of Wood-Plastic Composites Prepared from Hemicellulose-extracted Wood Flour [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2013
Hemicellulose of Southern Yellow Pine wood spices was extracted by pressurized hot water at three different temperatures: 140°C, 155°C and 170°C. Compounding with PP (polypropylene) was performed by extrusion after preparing wood flour and sieving to ...
A.A. Enayati   +4 more
doaj   +1 more source

Thermogravimetric and distillation studies on mercury, antimony and arsenic sulfides [PDF]

open access: yes, 1975
Thermogravimetric studies were made on naturally occurring sulfides of mercury, antimony and arsenic to determine activation energies and Arrhenius rates of reaction in vacuum and in atmospheres of air and nitrogen. Of the three sulfides only antimony
Rao, P.D., Town, J.W.
core  

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

open access: yesAdvanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa   +4 more
wiley   +1 more source

How does Cross-Linking Effect the Thermal Stability of Polyisoprene [PDF]

open access: yes, 2000
Polyisoprene can be cross-linked by an initial lithiation followed by reaction with both monochloro compounds and dichloro compounds. The monochloro compounds effect crosslinking through a lithium-chlorine exchange route while the use of dichloro ...
Wilkie, Charles A., Yao, Qiang
core   +1 more source

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