Results 171 to 180 of about 17,166 (245)

Development of Fibrillar Morphology in a Polypropylene Under Time‐Dependent Shear Flow

Macromolecular Materials and Engineering, EarlyView.
The effects of isothermal, non‐constant flow on morphology development in iPP are studied. Two tests, applying the same total work but with different time evolution of the shear rate, are considered. The pattern of shear flow, not just the intensity, influences morphology.
Vito Speranza, Sara Liparoti, Valentina Volpe, Roberto Pantani   +3 more
wiley   +1 more source

Nanoplastics in Depolymerization Products from Hydrolysis of Poly(Ethylene Terephthalate) in the Solid State

Macromolecular Rapid Communications, EarlyView.
Hydrolysis of PET in the solid generates nanoparticles, but thermal signatures of PET were only observed for hydrolysis at 150°C, while oligomers appeared to dominate the non‐monomeric products from hydrolysis at higher temperatures. ABSTRACT Circularity in plastic waste management through depolymerization to monomer is a promising route to address ...
Sierra F. Yost, Peter M. Guirguis, Patricia Pereira, Philip E. Savage, Bryan D. Vogt   +4 more
wiley   +1 more source

Biobased Epoxidized Castor Oil Covalent Adaptable Networks Adhesives Reinforced with Recycled Carbon Fibers

Macromolecular Rapid Communications, EarlyView.
It is reported the design of biobased sustainable, smart, and functional adhesives achieved dispersing recycled carbon fibers into biobased epoxy monomer. ABSTRACT The development of sustainable, smart, and functional adhesives is crucial in advancing environmentally friendly materials.
Alberto Cellai, Rafael Turra Alarcon, Bernhard Sölle, Elisabeth Rossegger, Valentina Casalegno, Milena Salvo, Marco Sangermano   +6 more
wiley   +1 more source

Active Learning for the Discovery of Antiviral Polymers

Macromolecular Rapid Communications, EarlyView.
Machine learning and active learning are integrated to accelerate the discovery of antiviral polymers. Molecular descriptors derived from polymer composition enable predictive modeling of antiviral activity, while unsupervised clustering explores chemical diversity. The active learning workflow identifies optimal candidates for synthesis, demonstrating
Clodagh M Boland, Nhat Quynh Nguyen, Nathan RB Boase   +2 more
wiley   +1 more source

Self Dilution of Model Polystyrene Pom‐Poms and Combs by Unentangled Side Arms

Macromolecular Rapid Communications, EarlyView.
This study uses experimental rheological data of 4 model polystyrene pom‐poms and 2 model polystyrene combs, all with unentangled arms, and constitutive modelling using Enhanced Relaxation of Stretch (ERS) model to show that the elongational rheology of the branched polymers is equivalent to that of polymer melts consisting of long linear chains ...
Max G. Schußmann, Valerian Hirschberg, Manfred Wilhelm, Manfred H. Wagner   +3 more
wiley   +1 more source

Rapid Epoxy Polymerization Induced by Aliphatic Cyclic Tertiary Amines: The Roles of Nucleophilicity and Leaving Ability

Macromolecular Rapid Communications, EarlyView.
Quinuclidine, as a tertiary amine, can rapidly polymerize epoxy groups. We investigated the relationship between amine properties and polymerization behavior by monitoring the reactions of various tertiary amines with epoxy groups. The results indicate that quinuclidine, the most nucleophilic amine examined, promotes epoxy polymerization.
Yukai Ito, Daisuke Aoki, Koji Arimitsu
wiley   +1 more source

Novel Sulfur‐Rich Polymers from Inverse Vulcanization as Functional Building Blocks for Photonics

Macromolecular Rapid Communications, EarlyView.
Isopropenyl aromatic comonomers, in particular novel 2,7‐diisopropenylfluorene and 2,8‐diisopropenyldibenzothiophene, synthesized by sustainable, facile, single‐step SMCCR from available brominated substrates are exploited in the Inverse Vulcanization process to obtain functional Sulfur‐rich macromolecular materials.
Raimondo Insogna, Fabiano Martorelli, Daniela Di Fonzo, Martina Martusciello, Roberto Utzeri, Angelo Angelini, Davide Comoretto, Paola Stagnaro   +7 more
wiley   +1 more source

A PLP‐SEC Investigation of Di(Ethylene Glycol) Methyl Ether Methacrylate Radical Polymerization Propagation Kinetics in Solution

Macromolecular Reaction Engineering, EarlyView.
The propagation rate coefficient of di(ethylene glycol) methyl ether methacrylate exhibits the same temperature dependency but is a factor of 12 higher in aqueous solution compared to bulk. Smaller increases are observed in ethanol and ethanol/water mixtures, with the value of the rate coefficient decreasing as the monomer concentration in solution is ...
Fatemeh Salarhosseini, Robin A. Hutchinson   +1 more
wiley   +1 more source

Diverse reactivity of maleimides in polymer science and beyond

Polymer International, Volume 74, Issue 4, Page 296-306, April 2025.
This mini‐review provides a thorough overview of maleimide chemistry, highlighting its diverse reactivity in polymer and materials science applications. Abstract Maleimides are remarkably versatile functional groups, capable of participating in homo‐ and copolymerizations, Diels–Alder and (photo)cycloadditions, Michael additions, and other reactions ...
Bruce E Kirkpatrick, Kristi S Anseth, Tayler S Hebner   +2 more
wiley   +1 more source

Kinetics of anionic polymerization of β‐myrcene in hydrocarbon solvents

Polymer International, EarlyView.
The process of anionic polymerization of β‐myrcene in hydrocarbon solvents was examined by kinetic studies and quantum chemical calculations. Abstract The kinetics of anionic polymerization of β‐myrcene initiated by sec‐butyllithium were examined in saturated and unsaturated hydrocarbon solvents, i.e. cyclohexane, cyclohexene, 4‐vinylcyclohexene and dl‐
Alexander Rösler, Steffen M Weidner, Tillmann Klamroth, Axel HE Müller, Helmut Schlaad   +4 more
wiley   +1 more source