Results 51 to 60 of about 23,872 (294)

Modeling the hydrolysis of perfluorinated compounds containing carboxylic and phosphoric acid ester functions, alkyl iodides, and sulfonamide groups [PDF]

open access: yes, 2009
Temperature dependent rate constants were estimated for the acid- and base-catalyzed and neutral hydrolysis reactions of perfluorinated telomer acrylates (FTAcrs) and phosphate esters (FTPEs), and the SN1 and SN2 hydrolysis reactions of fluorotelomer ...
Kaya Forest, Sierra Rayne
core   +1 more source

Unusual Swelling Behavior of Hydrogels Modified with Spiropyran as Appendage or Crosslinker

open access: yesAdvanced Functional Materials, EarlyView.
Not so innocent after all—spiropyran crosslinkers in methylenebisacrylamide‐crosslinked poly(acrylamide‐co‐acrylic acid) hydrogels increase crosslinking density, but also, counterintuitively, increase swelling. Charge complexation, cooperative chemo‐mechanical effects, and aggregation may explain these observations.
Michael M. Lerch   +7 more
wiley   +1 more source

Multilayer Soft Photonic Arrays Inspired by Cephalopod Skin for High‐Density, Independent, and Multimodal Actuation

open access: yesAdvanced Functional Materials, EarlyView.
A vertically stacked, DEA‐driven photonic array inspired by cephalopod skin, featuring highly crystalline colloidal crystal gels with vivid color, low FWHM and scalability is presented. The multilayer design removes lateral pixel interference, achieving near‐100% fill factor with fully independent RGB actuation.
Maga Kim   +11 more
wiley   +1 more source

Use of UV-curable acrylates gels as mounting media for palynological samples [PDF]

open access: yes, 2017
UV-curable acrylates are used as an easy, economic and rapid mounting media to mount palynological samples. The aqueous palynological residue is dehydrated with ethanol in order to be set in UV-curable acrylates such as Trabasil ® NR2 and Acrysoft ...
Burrieza, Alfredo   +3 more
core   +1 more source

Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment

open access: yesAdvanced Functional Materials, EarlyView.
Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li   +12 more
wiley   +1 more source

Synthesis, characterization and photoinduced curing of polysulfones with (meth)acrylate functionalities

open access: yesBeilstein Journal of Organic Chemistry, 2010
The UV-curable telechelic polysulfones with (meth)acrylate functionalities were synthesized by condensation polymerization and subsequent esterification. The final polymers and intermediates at various stages were characterized by 1H NMR, FT-ATR, and GPC.
Cemil Dizman   +3 more
doaj   +1 more source

Verfahren zur Synthese von Acryl- und Methacrylverhindungen durch Eliminierungs- und Austauschreaktionen in flüssiger Phase

open access: yesCHIMIA, 1973
Synthesis of acryl- and methacryl derivatives via elimination and interchange reactions of suitable compounds are described. Decarboxylation of maleic monoesters in a pyridine base/basic copper salts pyrolysis bath at 210 °C leads to the corresponding
E. Schindelmann-Pichler   +5 more
doaj   +1 more source

Ablative resin Patent [PDF]

open access: yes, 1970
Ablative resins used for retarding regression in ablative ...
Burns, E. A.   +2 more
core   +1 more source

Chain-Length-Dependent Termination in Radical Polymerization of Acrylates [PDF]

open access: yes, 2011
The technique of SP PLP EPR, which is single-pulse pulsed-laser polymerization (SP PLP) in conjunction with electron paramagnetic resonance (EPR) spectroscopy, is used to carry out a detailed investigation of secondary (chain-end) radical termination ...
Barth, J.   +3 more
core   +1 more source

Geometry‐Dependent Adhesion in Transparent Monodomain Liquid Crystal Elastomers

open access: yesAdvanced Functional Materials, EarlyView.
Liquid Crystal Elastomers (LCEs) are emerging as exciting pressure‐sensitive adhesives. We examine adhesion in chemically identical elastomer films, exploring the influence of geometry (director orientation) and phase (nematic or isotropic). We demonstrate the potential of these aligned films as transparent, tunable, broad‐temperature‐range smart ...
Aidan Street   +3 more
wiley   +1 more source

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