Results 51 to 60 of about 16,499 (162)

Nitrogen‐Rich, Tröger's Base‐Linked Porous Organic Polymers (POPs) as Heterogeneous Catalysts and Adsorbents of Organic Pollutants From Water

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 3, January 15, 2026.
Synthesized Tröger's based POPs showed great versatility in heterogeneous catalysis reactions and for pollutant adsorption. ABSTRACT Porous organic polymers are a new class of polymeric materials that combine permanent porosity, high surface area, monomer diversity, and synthetic tunability, making them highly promising candidates for application in ...
Tiago F. Machado   +4 more
wiley   +1 more source

Polímero ecológico

open access: yes, 2023
La granza es un polímero resultante de un proceso de reciclado de plásticos desechados, fácil de fabricar y con altas propiedades mecánicas, como la Dureza y el Límite elástico.
Peruga, S.   +3 more
core  

Frequência de irrigação utilizando polímero hidroabsorvente na produção de mudas de maracujazeiro-amarelo

open access: yesRevista Brasileira de Fruticultura, 2013
A produção de mudas de espécies frutíferas com qualidade é realizada em ambiente protegido que, em função das variações da temperatura do ar, necessita de irrigação frequente para manter a umidade no substrato. Desta forma, o trabalho foi realizado com o
Raoni Pereira de Carvalho   +2 more
doaj   +1 more source

Integration of Polymer‐Based Phase Change Materials Into Building Walls in the Hot Region of Algeria

open access: yesSPE Polymers, Volume 7, Issue 1, January 2026.
Schematic illustration of the integration of polymer‐based phase change materials (PEG/diatomite, PEG‐1000, and fatty‐acid polyurethane) into multilayer building walls in the hot region of Algeria, showing their optimal placement near the exterior wall to absorb daytime heat, delay heat transfer, and reduce indoor temperature fluctuations, thereby ...
Houssem Goudjil   +5 more
wiley   +1 more source

Absorción de un polímero doble atado a una superficie [PDF]

open access: yes, 2013
Utilizando simulaciones por el método de dinámica molecular, se caracterizaron los diferentes estados de absorción de un polímero compuesto de dos extremos y un monómero interior fijado a una superficie plana rígida, polímero en forma de U.
Rodulfo Reyes, Armando   +1 more
core  

Analysis of Methyl Substitution in Phenolic Compounds as Potential Biofuel Additives: From Solid‐State Description to Antioxidant Potential

open access: yesChemistrySelect, Volume 11, Issue 2, 15 January 2026.
The rising demand for renewable energy points to biodiesel as a viable fossil fuel alternative, yet its limited oxidative stability remains a challenge. This study reveals that methyl‐substituted hydroquinone derivatives exhibit enhanced antioxidant capacity, suggesting their promise as biofuel additives.
João P. M. Rodrigues   +5 more
wiley   +1 more source

Magnetic Hopfions as Local Rotations of the Uniform Magnetization Background

open access: yesphysica status solidi (RRL) – Rapid Research Letters, Volume 19, Issue 12, December 2025.
The Hopf mapping of 3D coordinate space to the unit sphere m2 = 1 in the magnetization space m(r) can be parametrized by some angles. These angles are used to define a local rotation matrix to restore the hopfion magnetization configuration from the uniformly magnetized state for any Hopf indices.
Konstantin Y. Guslienko
wiley   +1 more source

Electrically Conductive Nanocarbon/Elastomer Composite Inks for Flexible and Wearable Strain Sensing

open access: yesSmall, Volume 21, Issue 50, December 17, 2025.
An eco‐friendly ink combining carbon nano‐onions, carbon nanotubes, and a SEBS elastomer is formulated in biomass‐derived 2‐MeTHF. Dip‐coated and blade‐coated strain sensors show high conductivity, mechanical flexibility, and stable performance under repeated compression and tension.
Siva Sankar Nemala   +10 more
wiley   +1 more source

Preparo de nanocompósitos de poli(succinato de butileno) (PDS) e argila motmorilonita organofílica via polimerização in situ

open access: yesPolímeros, 2014
Nanocompósitos de poli(succinato de butileno) (PBS) e argila montmorilonita organofílica foram sintetizados via polimerização in situ, em três diferentes concentrações (4, 6 e 8% em massa).
Letícia P. Ferreira   +3 more
doaj   +1 more source

Physiological roles of lignins – tuning cell wall hygroscopy and biomechanics

open access: yesNew Phytologist, Volume 248, Issue 6, Page 2674-2706, December 2025.
Summary Lignins constitute the second most abundant carbon‐storing biopolymers in the biosphere. These phenolic polymers accumulate in different concentrations, compositions, and localisations within and between cell wall layers and cell types. Lignins were acquired during plant terrestrialisation 450 million years ago, and the diversification of their
Edouard Pesquet   +3 more
wiley   +1 more source

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