Results 51 to 60 of about 42,982 (160)

Polímeros como modificadores asfálticos

Transportes, 2009
<p>Neste trabalho foram preparadas diferentes misturas de ligante asfáltico modificado com polímeros. Foram utilizadas quatro amostras de polímeros, sendo duas de SBS, uma de SEBS e uma de Polietileno Modificado, as quais foram caracterizadas ...
Letícia SocaI da Silva, Maria Madalena de Camargo Forte, Luciano Pivoto Specht, Jorge Augusto Ceratti   +3 more
doaj  

Molecular Weight–Dependent Reinforcement of Biobased Aromatic Thermoplastic Polyurethanes Using Vegetable Oil Crosslinkers

Polymer Engineering &Science, Volume 66, Issue 5, Page 3845-3859, May 2026.
Strategy for biobased aromatic thermoplastic polyurethanes. ABSTRACT The transition toward sustainable thermoplastic polyurethanes (TPUs) is a key challenge for reducing the carbon footprint for a wide range of applications, from industrial to transportation, including advanced applications such as 3D‐printed sensors and soft actuators.
Héloïse Sauquet, Leonel Matias Chiacchiarelli, Edu Ruiz   +2 more
wiley   +1 more source

Specific migration of antioxidant from plastic packages for food [PDF]

, 2015
The use of additives in plastics is essential for the processing and performance of plastic products since the additives enhance the desired characteristics of the polymers.
Coltro, Leda, Machado M.P., Machado, Marina P., Coltro L.   +3 more
core   +1 more source

Potencialidades da análise de fluxo de materiais no processo produtivo de fibras ópticas poliméricas

Polímeros, 2014
O crescente uso de fibras ópticas em telecomunicação demanda também inúmeras pesquisas relacionadas aos processos produtivos deste meio de comunicação.
Julian Torres de Miranda Pinto, Karen Juliana Amaral, Paulo Janissek   +2 more
doaj   +1 more source

Biodegradable Biocomposites of Isosorbide‐Plasticized Corn Starch Reinforced With Green Graphene: Enhanced Properties for Sustainable Applications

Polymer Composites, Volume 47, Issue 7, Page 6744-6759, 10 April 2026.
Different properties of biocomposites based on TPS with isosorbide as a plasticizer and green graphene filler. ABSTRACT New biocomposites of corn starch plasticized with isosorbide and filled with two types of “green” graphene with different oxygen content, 1% (G99) and 8% (G92), were processed by melt blending.
Danny Moncada, Rebeca Bouza, Zoia Haholkina, Natalia Pettinelli, Rodríguez‐Llamazares Saddys, Maite Rico   +5 more
wiley   +1 more source

Miscibility of blends of polystyrene and silicon polymers

, 2015
: Blends of organosilicon polymers with polystyrene, PS, were investigated by scanning electron microscopy, and dynamical mechanical analysis. Blends with poly(tetramethylsilphenylene-siloxane), PTMPS, had a morphology characterized by globular domains ...
Araújo, Marco A. de, Werlang, Moisés M., Yoshida, Inez Valéria P., Nunes, Suzana P.   +3 more
core   +1 more source

ACERCA DEL VOLUMEN LIBRE PROMEDIO EN CO-POLÍMEROS DIBLOQUE DE POLI-ESTIRENO Y POLI-ISOPRENO

Anales (Asociación Física Argentina), 2008
Se determinó el volumen libre promedio en co-polímeros dibloque de (poli-estireno)-co-(poli-isopreno) para dos composiciones determinadas: 13.1 y 89.1 de porcentaje en masa de poli-estireno, respectivamente.
F. Herrera, W. Salgueiro, D. Vega, A. Somoza   +3 more
doaj  

Biochemical Characterization of a Kunitz‐Type Protease Inhibitor From Mimosa regnellii and Its Effects on Melanoma Cell Viability and Angiogenesis

Chemistry &Biodiversity, Volume 23, Issue 4, April 2026.
A Kunitz‐type serine protease inhibitor (JTI) purified from Mimosa regnellii seeds selectively targets melanoma cells. JTI triggers mitochondrial apoptosis, increases ROS and Ca2+ levels, arrests the cell cycle, and suppresses migration and angiogenesis without affecting healthy cells.
Luciana Maria Araújo Rabêlo, Pedro Henrique de Oliveira Cardoso, Leonardo Thiago Duarte Barreto Nobre, Paula Ivani Medeiros dos Santos, Sheyla Varela Lucena, Raphael Paschoal Serquiz, Marcelo Porto Bemquerer, Hugo Alexandre de Oliveira Rocha, Helena Bonciani Nader, Elizeu Antunes dos Santos, Adeliana Silva de Oliveira, Breno Emanuel Farias Frihling, Ludovico Migliolo   +12 more
wiley   +1 more source

PolyHEMA hydrogels for repairs or articular cartilage defects: 1 – systhesis and mechanical characterization

, 2015
The purpose of this work was the study of poly-2-hydroxy-ethyl-metacrylate (polyHEMA) as a biomaterial for the repair of articular cartilage defects. Improvement of mechanical properties were studied by two distincts routes: changes in cross-link density
Malmonge, Sonia M, Zavaglia, Cecília A. C   +1 more
core   +1 more source

Steric and electronic effects of alkyl substituents of soluble titanocenic catalysts in the sindiospecific polimerization of styrene [PDF]

, 1999
Titanocenos são catalisadores solúveis conhecidos para a polimerisação estereoespecífica de olefinas pró-quirais como o estireno. Nesse trabalho descrevemos as relações entre as características do poliestireno e a estrutura do precursor do catalisador ...
Dias, Marcos L., Klein, Stanlei I. [UNESP], Pereira, Brasilio C. A. [UNESP], Pereira, Brasilio C. A., Klein, Stanlei I.   +4 more
core   +1 more source