Results 131 to 140 of about 134,814 (297)

CO2 conversion to phenyl isocyanates by uranium(vi) bis(imido) complexes. [PDF]

, 2020
Uranium(vi) trans-bis(imido) complexes [U(κ4-{(tBu2ArO)2Me2-cyclam})(NPh)(NPhR)] react with CO2 to eliminate phenyl isocyanates and afford uranium(vi) trans-[O[double bond, length as m-dash]U[double bond, length as m-dash]NR]2+ complexes, including [U(κ4-
Bandeira, Nuno AG, Gibson, John K, Maria, Leonor, Marçalo, Joaquim, Santos, Isabel C   +4 more
core   +1 more source

Quantification of Homopolymer Impurities in Structured Acrylate Copolymers Produced by High‐Temperature Semi‐Batch Radical Polymerization

Macromolecular Reaction Engineering, EarlyView.
Isobornyl acrylate macromonomer solutions are synthesized via high‐temperature radical polymerization using a starved‐feed semi‐batch operating policy. Through sequential feeding, the macromonomer solution functions as an addition‐fragmentation agent, facilitating the production of blocky and comb acrylate copolymers.
Elizabeth G. Bygott, Amaris J. Wilkins, Daniel C. Kraiter, Robin A. Hutchinson   +3 more
wiley   +1 more source

Flame resistant elastic elastomeric fiber [PDF]

, 1974
Compositions exhibit elastomeric properties and possess various degrees of flame resistance. First material polyurethane, incorporates halogen containing polyol and is flame resistant in air; second contains spandex elastomer with flame retardant ...
Howarth, J. T., Massucco, A. A., Sheth, S., Sidman, K. R.   +3 more
core   +1 more source

Enhancement of Interfacial Strength and Corrosion Resistance of Adhesives via Synergistic Effect of Metallic Surface Treatment and α‐ZrP Nanosheets

Polymer Composites, EarlyView.
Synergistic enhancement of interfacial strength through α‐ZrP nanosheet reinforcement of polyurethane adhesive and aluminium anodization. ABSTRACT Polyurethane (PU) nanocomposites with enhanced mechanical performance and adhesive bonding are crucial for aerospace and automotive applications. This study investigates the reinforcing effect of α‐zirconium
Tomiris Zhumagaliyeva, Umut Bakhbergen, Sadyr Sabitov, Gulnur Kalimuldina, Aishuak Konarov, Fethi Abbassi, Sherif Araby   +6 more
wiley   +1 more source

Mechanical, Thermal, and Microstructural Evaluation of Bio‐Based Polyurethane Composites Reinforced With Woven Jute and Flax

Polymer Composites, EarlyView.
Graphical overview of the manufacturing and characterization of bio‐based polyurethane composites reinforced with woven jute and flax fibers produced by the VARTM process. Mechanical, thermal, and microstructural analyses reveal differences in stiffness, thermal stability, and interfacial behavior between the natural fiber composites.
Vanessa A. Santos, Kelvin M. K. Iwasaki, Felipe Ruivo Fuga, Ricardo De Medeiros   +3 more
wiley   +1 more source

REACTION OF VINYLENE TRITHIOCARBONATE WITH CHLOROSULFONYL ISOCYANATE [PDF]

Journal of Sciences, Islamic Republic of Iran, 1996
The reaction between vinylene trithiocarbonate and chlorosulfonyl isocyanate proceeds by initial attack of thiocarbonyl on the isocyanate carbon.
doaj  

Molecular Weight–Dependent Reinforcement of Biobased Aromatic Thermoplastic Polyurethanes Using Vegetable Oil Crosslinkers

Polymer Engineering &Science, EarlyView.
Strategy for biobased aromatic thermoplastic polyurethanes. ABSTRACT The transition toward sustainable thermoplastic polyurethanes (TPUs) is a key challenge for reducing the carbon footprint for a wide range of applications, from industrial to transportation, including advanced applications such as 3D‐printed sensors and soft actuators.
Héloïse Sauquet, Leonel Matias Chiacchiarelli, Edu Ruiz   +2 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

Bio‐Based Polyurethanes: Mechanical Performance, Structure–Property Relationships, and Future Directions

Journal of Polymer Science, EarlyView.
This review examines bio‐based polyurethanes from renewable feedstocks, focusing on structure‐property relationships governing mechanical performance. It analyzes reinforcement strategies, benchmarks against petrochemical counterparts, and explores future directions, including non‐isocyanate routes and circular economy integration for sustainable high ...
Khaled Chawraba, Hussein Medlej, Mohamad Sakr, Akram Hijazi, Abrar Hussain   +4 more
wiley   +1 more source

Assessment of the Interaction between Ammonium Dinitramide and Isocyanurate Bonding Agents for Application on Technologies of Composite Solid Propellants

Propellants, Explosives, Pyrotechnics, EarlyView.
This work investigates the interaction of two isocyanurate‐based bonding agents with ammonium dinitramide: triallyl isocyanurate and 1,3,5‐tris(2‐hydroxyethyl) isocyanurate, which contain alkene and hydroxyl functional groups in their side chains, respectively.
Jessica O. Silva, Josiane R. C. Silva, Kamila P. Cardoso, Milton F. Diniz, Márcio Y. Nagamachi, Luiz F. A. Ferrão   +5 more
wiley   +1 more source