Results 81 to 90 of about 31,584 (223)

Triggering autocatalytic reaction by host–guest interactions

open access: yesChemical Communications, 2016
The acceleration of a sequential reaction through electrostatic alteration of substrate basicity within a supramolecular host is demonstrated.
Volodymyr, Sashuk   +3 more
openaire   +3 more sources

Better Material Properties and Faster Catalyzed Chemical Recycling for Poly(L‐Lactide) Using a Simple Commercial Glycerol Ethoxylate Additive

open access: yesChemistry – A European Journal, EarlyView.
Glycerol ethoxylate (GEO), a branched ethylene glycol derivative, both toughens commercial PLLA and accelerates its chemical recycling to L‐lactide. The lead sample, containing 10 wt.% GEO, shows 9x higher elongation at break and 6x higher tensile toughness than pure PLLA. The GEO–PLLA samples are efficiently chemically recycled to L‐lactide, even when
Madeleine L. Smith   +4 more
wiley   +1 more source

The Curing Kinetics of Multiscale [Ni(EDTA)]-2 Intercalated Zn-Al Layered Double Hydroxides: Glass Fiber–Epoxy Composite Prepreg

open access: yesInternational Journal of Polymer Science, 2021
In the present research, the effect of Zn2Al layered double hydroxides (LDH) and nickel (II)-EDTA complex intercalated LDH (LDH-[Ni(EDTA)]-2) on the cure kinetics of glass fiber/epoxy prepreg (GEP) was explored using nonisothermal differential scanning ...
Reza Darvishi   +2 more
doaj   +1 more source

Self‐Immolative Gels: Programmable Degradation Using Self‐Immolative Linkers and Polymers

open access: yesChemistry – A European Journal, EarlyView.
Self‐immolative linkers and polymers undergo bond‐cleaving reaction cascades in response to specific stimuli. Their incorporation into gels can be harnessed to release cargo, induce property changes, or trigger degradation in a highly controlled manner. These functions can be employed in applications such as sensing and drug delivery.
Chuanfeng Li, Elizabeth R. Gillies
wiley   +1 more source

Density fingering of an exothermic autocatalytic reaction

open access: yesPhysical Review E, 2003
Density fingering of exothermic autocatalytic fronts in vertically oriented porous media and Hele-Shaw cells is studied theoretically for chemical reactions where the solutal and thermal contribution to density changes have opposite signs. The competition between these two effects leads to thermal plumes for ascending fronts.
Bánsági Jr. Tamás   +5 more
openaire   +3 more sources

The Asymmetric Self‐Replicative Alkylation of N‐Arylaldimines Using Organolithium Reagents

open access: yesChemistry – A European Journal, EarlyView.
Here, we report a new asymmetric autoinductive reaction; the addition of nBuLi to N‐arylaldimines to form chiral lithium amides. The reaction proceeds with full conversion and complete transfer of chirality, representing the first example of an asymmetric autoinductive reaction with organolithium reagents.
Anka Hagelschuer   +2 more
wiley   +1 more source

Recent Advances in the Laser‐Based Fabrication and Applications of High‐Entropy Alloy Nanoparticles

open access: yesMetalMat, EarlyView.
This review presents recent advances in the laser‐based fabrication of high‐entropy alloy nanoparticles, focusing on scalable, environmentally friendly, and compositionally tunable synthesis methods. It highlights the critical influence of laser parameters on nanoparticle size, phase, and morphology, enabling tailored properties for applications in ...
Bibek Kumar Singh   +4 more
wiley   +1 more source

Machine Learning Assisted Prediction of Degradation Behavior of Poly(Lactic‐Co‐Glycolic Acid)

open access: yesMaterials Genome Engineering Advances, EarlyView.
Using a gradient boosting‐based machine learning model trained on 484 data points, this study predicts the degradation behavior of poly(lactic‐co‐glycolic acid) (PLGA) implants. Degradation time, molecular weight, and lactide/glycolide ratio were identified as key governing factors, enabling accurate prediction while reducing reliance on extensive ...
Shuai Wang   +11 more
wiley   +1 more source

A molecular approach to complex adaptive systems [PDF]

open access: yes, 2007
Complex Adaptive Systems (CAS) are dynamical networks of interacting agents which as a whole determine the behavior, adaptivity and cognitive ability of the system. CAS are ubiquitous and occur in a variety of natural and artificial systems (e.g., cells,
Decraene, James   +2 more
core  

Accelerated Degradation of PLA‐Based Composites in Harsh Alkaline Environment

open access: yesPolymer Composites, EarlyView.
Evolution of surface properties and features of RP sample treated in harsh conditions: FTIR and wetting analysis. ABSTRACT The performance of poly(lactic acid) (PLA) bioplastics under harsh service conditions must be understood to enable their use in multi‐use products.
Cristina Moliner   +5 more
wiley   +1 more source

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