Results 61 to 70 of about 7,913 (200)
ChemistryEurope, Volume 4, Issue 1, January 2026.Machine‐learning methods are used to predict styrene binding energies and insertion barriers in a series of group III cationic catalysts. A generative algorithm based on these predicted data is provided to propose new catalysts. The rational design of group III metallocene catalysts for styrene polymerization remains a complex challenge due to ...
Stella Christodoulou +3 more
wiley +1 more source
One-dimensional transport in polymer nanofibers [PDF]
, 2004 We report our transport studies in quasi one-dimensional (1D) conductors - helical polyacetylene fibers doped with iodine and the data analysis for other polymer single fibers and tubes.
A. N. Aleshin +8 more
core +1 more source
Small Methods, Volume 10, Issue 2, 22 January 2026.A sustainable alternative to the energy‐intensive traditional thermocatalytic hydrogenation of acetylene to ethylene is reported. The catalyst is a cobalt single‐atom catalyst supported on carbon nitride that is powered by visible light, uses water as a proton source and demonstrates high selectivity, stability, and recyclability.
Anna Fortunato +8 more
wiley +1 more source
Sixtieth Anniversary of Ziegler-Natta Catalysts and Stereospecific Polymerization [PDF]
Kemija u Industriji, 2015 This review article highlights the history of the discoveries of organometallic catalysts and stereospecific polymerization of α-olefins, dienes and a number of vinyl monomers by Karl Ziegler and Giulio Natta sixty years ago, their developments and ...
Janović Z. , Veksli Z.
doaj
Electrical Materials and Applications, Volume 3, Issue 1, January/December 2026.The polypropylene (PP) dielectric film undergoes severe degradation at high temperature. Electron‐beam irradiation crosslinking induces the formation of a compact spherulitic morphology in PP, which effectively restricts molecular‐chain mobility and hinders oxygen diffusion, thereby enhancing its long‐term thermal stability.
Liangtian Zhang +8 more
wiley +1 more source
Correlation Between Vinyl Content of Recycled HDPE and Polymer Degradation: An NMR Approach
Journal of Applied Polymer Science, Volume 142, Issue 47, December 15, 2025.The degradation behavior of high‐density polyethylene (HDPE) during recycling depends on its vinyl group content. This study shows that 1H NMR spectroscopy enables accurate assessment of vinyl groups unlike FTIR. Changes in melt flow and molecular weight with multiple processing are linked to vinyl content which could enable tailor‐made re‐additivation
Kim Hao Ng +3 more
wiley +1 more source
Study on the Effects of Temperature, Time and the Policy of Prepolymerization on Particle Morphology in Propylene Slurry Polymerization with Heterogeneous Ziegler-Natta Catalysts [PDF]
علوم و تکنولوژی پلیمر, 2007 The effects of temperature, time and the strategy of prepolymerization were studied on the morphology of polypropylene particles. propylene polymerization was carried out in slurry phase using 4th generation of Ziegler-Natta Catalyst, cyclohexylmethyl ...
G. Pircheraghi +2 more
doaj +1 more source
Synthesis of conducting graphite-like nanometer wires via soluble precursors [PDF]
, 1994 Graphite - like conducting materials were encapsulated in the channels of new mesoporous MCM- 41 materials with typical channel diameters of 30-40 Ä.
Bein, Thomas +3 more
core +1 more source
Macromolecular Rapid Communications, Volume 46, Issue 23, December 5, 2025.Can artificial intelligence fully replace humans in polymer discovery? How can we effectively harness AI's potential while preserving human creativity, ethics, and expertise? Does AI introduce new biases and interpretability challenges into SDL? This perspective aims to answer these important questions and advocates for symbiotic human‐AI intelligence ...
Bahar Dadfar +2 more
wiley +1 more source