Results 51 to 60 of about 134,814 (297)

Fluorine containing polyurethane [PDF]

open access: yes, 1969
A polyurethane polymer prepared by reacting a hydroxy-terminated polyformal with an organic diisocyanate is ...
Trischler, F. D.
core   +1 more source

Organics in comet 67P – a first comparative analysis of mass spectra from ROSINA–DFMS, COSAC and Ptolemy [PDF]

open access: yes, 2017
The ESA Rosetta spacecraft followed comet 67P at a close distance for more than 2 yr. In addition, it deployed the lander Philae on to the surface of the comet.
A. Bieler   +45 more
core   +4 more sources

Dynamic Bonds Enable Repair and Reprocessing of Glycol‐Modified PET

open access: yesAdvanced Functional Materials, EarlyView.
Dynamic hindered urea bonds enable rapid healing in glycol‐modified PET‐based polyurethanes. Tuning the hindered‐amine content allows these polymers to balance mechanical integrity with fast repair, achieving complete scratch disappearance in 30 s at 130°C.
Chaninya Mak‐iad   +3 more
wiley   +1 more source

tert-Butyl (6-(3-(3-Fluorophenyl)ureido)hexyl)carbamate

open access: yesMolbank
The title compound, tert-butyl (6-(3-(3-fluorophenyl)ureido)hexyl)carbamate, was synthesized and characterized by NMR, MS, elemental analysis, and single-crystal X-ray diffraction.
Daria Zapravdina   +5 more
doaj   +1 more source

Advancing the Synthesis of Isocyanate-Free Poly(oxazolidones)s: Scope and Limitations

open access: yes, 2020
Poly(oxazolidone) is an emerging class of polyurethanes (PUs) that is easily accessible by an isocyanate-free pathway via the step-growth copolymerization of CO2-based monomers (bis(α-alkylidene cy...
T. Habets   +3 more
semanticscholar   +1 more source

A Personalized, 3D Printed Polymeric Device for the Prevention of Post‐Myocardial Infarction Cardiac Remodeling

open access: yesAdvanced Healthcare Materials, EarlyView.
Myocardial infarction often leads to pathological remodelling and ventricular dilatation, key features of HFrEF. This study introduces a personalized, 3D‐printed cardiac restraint device (CARD) printed using rationally designed inks displaying the requested printability and mechanical properties.
Nicola Mansour   +6 more
wiley   +1 more source

Covalent Protein Inhibitors via Tyrosine and Tryptophan Conjugation with Cyclic Imine Mannich Electrophiles

open access: yesAngewandte Chemie, EarlyView.
Targeted covalent inhibitors (TCI) containing cyclic imine warheads react with tyrosine and tryptophan residues via the Mannich reaction. These cyclic imine warheads show comparable reaction kinetics to cysteine‐reactive electrophiles commonly used in TCIs.
Sijie Wang   +6 more
wiley   +2 more sources

Self‐Regulating Sodium‐Ion Battery Materials: From Phase Reconstruction to Functional Activation

open access: yesAdvanced Materials, EarlyView.
Self‐regulating sodium‐ion batteries hinge on programmable phase behavior in layered oxides, interphases that renew without growth, and electrolytes that steer solvation and chemistry. This review distills mechanisms into design rules that span composition, site and entropy tuning, and self‐buffering anodes, linking operando evidence to choices and ...
Hong Gao   +10 more
wiley   +1 more source

Research of isocyanate mass transfer

open access: yesТонкие химические технологии, 2009
In work process of toluilene-isocyanate mass transfer being a component of glues on a polyurethane basis in a bivinyl-styrene thermoplastic elastomer and action mechanism toluilene-isocyanate of at formation of adhesive contact are ...
D. A. Kozulin   +2 more
doaj  

The Quality Bonding of Sembilang Bamboo (Dendrocalamus giganteus Munro) Using Isocyanate Adhesive

open access: yesSains Natural
The increasing demand for wood-based products is not balanced by a sufficient timber supply, creating a need for alternative materials such as bamboo.
Ajeng Rahmawati   +3 more
doaj   +1 more source

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