Results 131 to 140 of about 349,221 (347)

Addition polymers from 1,4,5,8-tetrahydro-1,4;5,8-diepoxyanthracene and Bis-dienes. 2: Evidence for thermal dehydration occurring in the cure process [PDF]

open access: yes
Diels-Alder cycloaddition copolymers from 1,4,5,8-tetrahydro-1,4;5,8-diepoxyanthracene and anthracene end-capped polyimide oligomers appear, by thermogravimetric analysis (TGA), to undergo dehydration at elevated temperatures.
Ahn, Myong-Ku   +3 more
core   +1 more source

Advancements in 3D Printing of Self‐Healing Polymer Systems

open access: yesMacromolecular Materials and Engineering, EarlyView.
This review provides an overview of the most common 3D printing technologies and summarizes the numerous methods to produce self‐healing materials. The challenges and strategies used to adapt these methods to 3D printing are then highlighted to provide a framework for future research in 3D printing self‐healing polymer systems.
Adam L. Bachmann, Bryan S. Beckingham
wiley   +1 more source

Recent Advances in Conductive Rubber Composites: Progress, Challenges, and Emerging Opportunities

open access: yesMacromolecular Rapid Communications, EarlyView.
This study reviews the recent advances in conductive rubber composites, focusing on key aspects such as material selection, conductive mechanisms, interfacial engineering, processing methods, vulcanization strategies, and practical applications. It also discusses current challenges and highlights emerging directions that are shaping the development of ...
Lu Yin   +3 more
wiley   +1 more source

A Self‐Healing Conductive PVP/SUM Hydrogel for Real‐Time Human Motion Detection

open access: yesNano Select, EarlyView.
The PVP/SUM hydrogel exhibits self‐healing, conductivity, and strong mechanical performance due to H‐bonds and dipole–dipole interactions. It elongates up to 330% and shows fracture strength between 0.9 and 1.5 MPa under varying strain rates. With a conductivity of 3.28 × 10−5 S/cm, it responds rapidly to human motion, enabling real‐time monitoring for
Vinnakoti Meghana, Illa Ramakanth
wiley   +1 more source

Qualitative study exploring the views and perceptions of parents/carers of young children with CF regarding the introduction of CFTR modulator therapy (The REVEAL study; PaRents pErspectiVEs of KAftrio in chiLdren aged 2–5)

open access: yesBMJ Open Respiratory Research
Background Cystic fibrosis (CF) is associated with a historically high treatment burden which causes anxiety and exhaustion for parents of children with CF, especially in the early years of a child’s life.
Kevin W Southern   +4 more
doaj   +1 more source

Supplementary parenteral arginine corrects hypoargininaemia and rebalances plasma amino acid profiles in very preterm infants receiving parenteral nutrition: A prospective study

open access: yesNutrition in Clinical Practice, EarlyView.
Abstract Background Plasma amino acid (AA) profiles in parenteral nutrition (PN)–dependent very preterm infants (VPIs) consistently show overprovision of essential AA (EAA) and arginine deficiency. This may have implications for growth and immune/inflammatory responses.
Frances Callaghan   +6 more
wiley   +1 more source

Species identity and spatial scale drive context‑dependent tree diversity effects in a Finnish forest experiment

open access: yesOikos, EarlyView.
Tree species diversity is known to affect tree growth and leaf traits, which in turn can influence various ecosystem processes. However, the reported direction of these tree diversity effects is inconsistent, indicating that their outcomes depend strongly on ecological context.
Juri A. Felix   +2 more
wiley   +1 more source

Exploration of the Phytochemical and Antidiabetic Properties of Teucrium polium: A Natural Asset for Type 2 Diabetes Management

open access: yesChemistryOpen, EarlyView.
Teucrium polium shows antidiabetic activity with its phytochemical composition and biological activities. The essential oil is rich in carvacrol, thymol, γ‐terpinene, and o‐cymene, while the aqueous and hydroethanolic extracts are characterized by poliumoside, verbascoside, isorhamnetin‐3‐O‐rutinoside, and apigenin‐7‐rutinoside. Antioxidant activity is
Hajar El Ouadni   +10 more
wiley   +1 more source

2,3‐Dichloro‐5,6‐Dicyano‐1,4‐Benzoquinone (DDQ)‐Mediated CC Bond Formation: Redox Strategies from Stoichiometric to Catalytic Systems

open access: yesChemistryOpen, EarlyView.
2,3‐Dichloro‐5,6‐dicyano‐1,4‐benzoquinone serves as a versatile oxidant and redox catalyst for CC bond formation through hydride abstraction or single‐electron transfer. Stoichiometric and catalytic systems enable benzylic, allylic, and aromatic CH activation under mild, metal‐free conditions, providing sustainable routes to complex and bioactive ...
Dohoon Cha, Sun‐Joon Min
wiley   +1 more source

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