Results 41 to 50 of about 575 (138)

Synthesis and characterization of styrene-co-divinylbenzene-graft-linseed oil by free radical polymerization

eXPRESS Polymer Letters, 2008
A variety of opaque white to light yellow polymeric material have been prepared by two methods, one copolymerization of styrene (ST), divinylbenzene (DVB), and grafting of linseed oil (LIN), and the second involves the copolymerization of the same ...
doaj   +1 more source

Synthesis of Micro 14C‐Labeled Polylactide for Environmental Assessment Analysis

Chemistry–Methods, Volume 5, Issue 12, November 2025.
In this study, we present the production of 14C‐labeled PLA under optimized synthesis conditions. First, the industrially toxic catalyst Sn(Oct)2 was compared with an alternative, biocompatible zinc bisguanidine catalyst in the synthesis of lactide from lactic acid.
Sara Adeleh, Tabea Becker, Sonja Herres‐Pawlis, Roland Bol, Birte Drewes, Thomas Pütz   +5 more
wiley   +1 more source

Biomass‐Derived Hetero Atom‐Doped Porous Carbon for Enhanced CO2 Adsorption

MetalMat, Volume 2, Issue 4, December 2025.
This review discusses the synthesis and characterization of the heteroatom (N, S, P, O, B)‐doped porous carbon materials which are specifically designed for the CO2 capture and CO2 conversion to value‐added products. ABSTRACT The emission of carbon dioxide (CO2) and its impact on global warming have shown exponential growth in recent decades.
Aniruddha B. Patil, Vijaya K. Patil, Bhalchandra M. Bhanage   +2 more
wiley   +1 more source

Bismuth Silicate Catalyst for Efficient Electrocatalytic CO2 Reduction and Electrolyte‐Free Formic Acid Production

Advanced Science, Volume 12, Issue 41, November 6, 2025.
Layered Bi2SiO5 is designed that electrochemically reconstructs into a highly active Bi@Bi2O2CO3 catalyst for CO2‐to‐formate conversion. The system operates efficiently over a wide operating range. Coupling with solid‐state electrolyte system enables continuous production of electrolyte‐free formic acid, simplifying separation and reducing energy ...
Ping Zhu, Xin‐Hao Cai, Cheng‐Cheng Huang, Ying Zhou, Na Chu, Zi‐Bo Jing, Wen‐Long Wang, Bilu Liu, Yong Jiang, Qian‐Yuan Wu   +9 more
wiley   +1 more source

Making vertebrate fossil radiocarbon dates more useful for global scientific research

Journal of Quaternary Science, Volume 40, Issue 8, Page 1309-1335, November 2025.
ABSTRACT Radiocarbon dating of bones is essential for reconstructing timelines of species' occurrences, domestication, extinction, migrations, and interactions with Quaternary environments. Many studies compile these chronologies at continental to global scales by aggregating radiocarbon dates from various sources, often balancing data quantity and ...
Salvador Herrando‐Pérez, Thomas W. Stafford Jr.   +1 more
wiley   +1 more source

Síntese e caracterização de copolímeros reticulados à base de estireno, divinilbenzeno e metacrilato de metila com propriedades magnéticas Synthesis and characterization of crosslinked copolymers based on syrene, divinylbenzene and methyl methacrylate with magnetic properties

Polímeros, 2013
Neste trabalho, foram sintetizados copolímeros à base de estireno (STY), divinilbenzeno (DVB) e metacrilato de metila (MMA) com propriedades magnéticas pela técnica de polimerização em suspensão.
Flavio S. Souza, Marcos A. S. Costa, Luiz Claudio de Santa Maria, Ivana L. Mello, Manoel R. Silva, Shu H. Wang   +5 more
doaj  

Nanoporous Redox‐Active Miktoarm Block Copolymer Templates

Journal of Polymer Science, Volume 63, Issue 21, Page 4649-4660, 1 November 2025.
Soft‐etchable miktoarm block copolymers based on polystyrene and polylactide (PLA) are synthesized by a combination of living anionic polymerization, end group modification, and ring opening polymerization. The impact of solvent vapor annealing and selective etching of the PLA phase is demonstrated for nanoporous thin film template generation ...
Lukas Stein, Philip Dreier, Tobias Widder, Cristina Prado, Kaan Kizmaz, Klaus Dirnberger, Ilja Gunkel, Ullrich Steiner, Holger Frey, Sabine Ludwigs   +9 more
wiley   +1 more source

Heterogeneous Styrene Divinylbenzene Copolymers In Collapsed And Reexpanded States

Journal of Applied Polymer Science, 1986
Öz bulunamadı.
OKAY, O, BALKAS, TI
openaire   +3 more sources

Wildfires Change Summertime Dissolved Organic Matter in Boreal Headwater Streams

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 11, November 2025.
Abstract Boreal forests export large amounts of terrestrial carbon into downstream waters as dissolved organic material (DOM), but how increasing wildfire frequency affects this flux remains understudied. If more DOM is exported from land into water after wildfire and/or this DOM is more readily transformed by microbes, the net loss of carbon from ...
Erin Matula, Erik J. S. Emilson, Emily Smenderovac, Jeremy A. Fonvielle, Erika C. Freeman, Andrew J. Tanentzap   +5 more
wiley   +1 more source

Flexibility and Coordination of M4, M9, and M19 Metal Clusters in Styrene-Divinylbenzene Copolymer in the Absence of Solvent

Chemical Engineering Transactions
The work is aimed at studying the adsorption of the metal clusters in styrene-divinylbenzene copolymers. The changes in the conformation flexibility of the polymer network in the area of the metal cluster adsorption were studied depending on the ...
Alexey V. Bykov, Galina N. Demidenko
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