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Orientation effect in poly (butylene succinate) fibers
(Polymers & Polymer Composites vol.11 no.1 51-56 2003, 2003)
Fibers of poly (butylene succinate) (PBS) were prepared using a single screw extruder at various take-up speeds. Changes in fiber structure, morphology and physical properties were investigated using sonic velocity ...
Analysis of energy transfer and ternary non-covalent filler/matrix/UV stabilizer interactions in carbon nanofiber and oxidized carbon nanofiber filled poly(methyl methacrylate) composites
(Elsevier, 2011-10-27)
Ternary non-covalent interactions between carbon nanofibers (CNFs), oxidized carbon nanofibers (ox-
CNFs), poly(methyl methacrylate) (PMMA) chains, and benzotriazole-containing UV stabilizers were
analyzed using ...
Producción de un biocompuesto a base de almidón termoplástico de yuca amarga (Manihot Esculenta Crantz) y nanocelulosa obtenida de rastrojo de piña (Ananas Comosus)
(Universidad Nacional (Costa Rica), 2021-07-06)
En este estudio se produjo un biocompuesto a base de almidón termoplástico de yuca (Manihot esculenta Crantz) y nanocelulosa obtenida de rastrojo de piña (Ananas comosus), la elaboración de este bioplástico se presenta ...
Exploration of Bioengineered Scaffolds Composed of Thermo-Responsive Polymers for Drug Delivery in Wound Healing
(MDPI AG, 2021-01-30)
Innate and adaptive immune responses lead to wound healing by regulating a complex series of events promoting cellular cross-talk. An inflammatory response is presented with its characteristic clinical symptoms: heat, pain, ...
Producción de un biocompuesto a base de almidón termoplástico de yuca amarga (Manihot esculenta crantz) y nanocelulosa obtenida de rastrojo de piña (Ananas comosus)
(Universidad Nacional (Costa Rica), 2021)
En este estudio se produjo un biocompuesto a base de almidón termoplástico de yuca (Manihot esculenta Crantz) y nanocelulosa obtenida de rastrojo de piña (Ananas comosus), la elaboración de este bioplástico se presenta ...
On the comparison between diafiltration and isothermal titration calorimetry: Determination of the amount of analytes bound to watersoluble polymers
(Elsevier Ltd, 2019)
Aqueous systems composed of low molecular-weight species (LMWS) and water-soluble polymers (WSP) present
important technological applications. Therefore, continuous advances on characterization techniques are crucial
to ...
Electrospun nanofibers: A nanotechnological approach for drug delivery and dissolution optimization in poorly water-soluble drugs
(International Association of Physical Chemists, 2020)
Electrospinning is a novel and sophisticated technique for the production of nanofiberswithhigh surface area, extreme porous structure, small pore size, and surface morphologies that make them suitable ...
An approach to rheological and electrokinetic behaviour of lipidic vesicles covered with chitosan biopolymer
(Elsevier, 2008)
The rheological and electrokinetic properties of soybean lecithin vesicles prepared from concentrated soy lecithin dispersions (250 g/L) obtained by slow swelling under shear conditions and mixed with chitosan biopolymer ...
Composites of carbon nanofibers and thermoplastic polyurethanes with shape-memory properties prepared by chaotic mixing
(Wiley Inter Science, 2009)
Composites of carbon nanofibers (CNFs), oxidized car bon nanofibers (ox-CNFs), and shape-memory thermo plastic polyurethane (TPU) were prepared in a chaotic
mixer and their shape-memory properties evaluated.
The polymer ...
Caracterización química de algunos desechos agroindustriales de Costa Rica
(Universidad Nacional [Costa Rica ], 1998-01-01)
Se caracterizó químicamente las cáscaras de la piña y el aserrín de madera, la cascarilla de arroz, la brosa y el pergamino del café y se procedió a la separación de la lignina y la celulosa. Los análisis I R realizados ...