Results 131 to 140 of about 42,970 (286)

Renewable methacrylate resin for vat photopolymerization derived from post‐consumer polyester waste

Polymer International, EarlyView.
End‐of‐life poly(ethylene terephthalate) was upcycled into a renewable methacrylate crosslinker using microwave‐assisted methacrylation and applied in vat photopolymerization. The recycled resin enabled high‐resolution 3D printing with tunable mechanical performance, highlighting a circular strategy to reduce fossil‐based photopolymer feedstocks ...
Kylian Janssen, Teijs Reijnders, Jarno Guit, Jerzy Hul, Paul Morandi, Rudy Folkersma, Katja Loos, Vincent SD Voet   +7 more
wiley   +1 more source

Towards greener yttrium‐catalyzed ring‐opening polymerization via an all‐terpene reaction concept

Polymer International, EarlyView.
Development of a terpene‐based catalytic system for ring‐opening polymerization of bio‐based lactones that reveals the steric effects of the nucleophile on initiation and alkoxide exchange, while simultaneously enabling post‐polymerization functionalization.
Lea‐Sophie Hornberger, Jonas App, Caroline Sophie Pottgiesser, Friederike Adams   +3 more
wiley   +1 more source

Extensional Rheology and Extrusion Blow Molding of Idealized High‐Density Polyethylene/Polypropylene Blends as Model Post‐Consumer Resins

Journal of Polymer Science, EarlyView.
Compatibilization markedly improves the top‐load compression performance and structural integrity of HDPE/PP blow‐molded bottles. Neat HDPE, PP, and HDPE/PP bottles exhibit premature neck cracking at relatively low strains, whereas the compatibilized HDPE/PP/C blend sustains substantially higher loads and greater deformation without cracking ...
Gabe Cihlar, Ethan Graetz, Ryan C. Xu, Alex M. Jordan, Wei Zheng   +4 more
wiley   +1 more source

Leucaena Oil Functionalized With Osmium Tetroxide as a Precursor for Polyol‐Based Polyurethane

Journal of Polymer Science, EarlyView.
Leucaena leucocephala seed oil is converted into a hydroxyl‐functional biopolyol through OsO4‐mediated dihydroxylation. The resulting biopolyol shows a hydroxyl number of 160–175 mg KOH g−1 and is successfully used to produce flexible, open‐cell polyurethane foams, highlighting a renewable route for converting underutilized biomass into value‐added ...
Giovanni Miraveti Carriello, Lucas Repecka Alves, Guilherme Manassés Pegoraro, Henrique Solowej Medeiros Lopes, Amanda Stefanie Jabur de Assis, Thaís de Agrella Janolla, David Rodrigues Gomes, Diego Aleixo da Silva, Beatriz Merillas, Fabiana Aparecida Lobo, Fabio Minoru Yamaji, Maira de Lourdes Rezende, Aparecido Junior de Menezes, Giovanni Pimenta Mambrini   +13 more
wiley   +1 more source

Sprayable MXene Hydrogels With Composition‐Driven Interfacial Stabilization and on‐Skin Gelation for Conformal Postsurgical Photothermal Therapy

Small, EarlyView.
A sprayable MXene‐loaded thermosensitive hydrogel was developed for postoperative melanoma treatment. Molecular simulations combined with experimental analyses demonstrated that polymer composition regulates MXene oxidation. The optimized hydrogel effectively preserved photothermal performance under physiological conditions, enabling efficient near ...
Taek Hwang, Soojin Ko, Byeongjun Jeon, SeongHoon Jo, Soonjong Roh, Yeonju Song, Yu‐Jin Kim, Seok Hyeon Kim, Seong Ryeol Ye, Jin Hoon Kim, Dae Woo Kim, Hyojin Lee, Youngmee Jung, Bumjoon Seo, Seon Joon Kim, Jin Yoo   +15 more
wiley   +1 more source

Advancing Biomass Valorization via Electrocatalytic Oxidation: Design Principles, Emerging Challenges, and Future Perspectives

SusMat, EarlyView.
This review categorizes substrates for electrocatalytic biomass valorization by carbon chain length into C2–C3 alcohols, C5–C7 cyclic compounds, and Cn biopolymers. It identifies four universal catalyst design principles: optimizing intermediate adsorption, engineering synergistic multi‐type active sites, accelerating active‐site formation, and ...
Ruya Zhang, Shuaihu Jiang, Yijin Kang
wiley   +1 more source

Oxaziridines: Versatile Reagents in Modern Organic Synthesis

The Chemical Record, EarlyView.
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra, Subba Rao Cheekatla, Keshaba Nanda Parida   +2 more
wiley   +1 more source

Sulfur‐ and Selenium‐Decorated Coumarins: Synthetic Strategies Involving Cyclization and Late‐Stage Functionalization

The Chemical Record, EarlyView.
Two decades of synthetic strategies for sulfur‐, selenium‐decorated coumarins are critically surveyed through 44 literature reports, with particular emphasis on derivatives functionalized at the C‐3 and C‐4 positions. This review reports the direct construction of the coumarin framework through cyclization processes and late‐stage functionalization of ...
Bruna R. Schneider, Laura D. de Avila, Mauricio C. D. F. Xavier, Alex F. C. Flores, Liane K. Soares, Gabriel P. da Costa, Angelita M. Barcellos   +6 more
wiley   +1 more source

Biodiesel Production from Hevea brasiliensis Seeds: A Systematic Review

Vietnam Journal of Chemistry, EarlyView.
ABSTRACT The Hevea brasiliensis (HB) species, also called the rubber tree, is currently cultivated worldwide for the extraction of latex, an input for rubber production. In addition, its seeds currently have few productive applications, despite their high oil content.
Sara Lüneburger, Giovano Tochetto, Letiére Cabreira Soares, André Lazarin Gallina   +3 more
wiley   +1 more source

Enhancing Alkaline Biodiesel Transesterification Using Protic Ionic Liquid [DETA][Hx] as a Low-Concentration Additive. [PDF]

ACS Omega
Trindade MEJ, Cardoso DSN, Pereira KRO, Mattedi S, Simonelli G, Santos LCL.   +5 more
europepmc   +1 more source