Results 71 to 80 of about 23,225 (270)
Study of the reactivity of Kraft and organosolv lignins with 4, 4’–diphenylmethane diisocyanate and characterization of the obtained products [PDF]
, 2011 The interaction of two types of lignins: Kraft lignin (KL), isolated according to the LignoBoost process (Sweden), and Alcell organosolv (OL) lignin (Canada), with 4,4’-diphenylmethane diisocyanate (MDI) in the dry dioxane media at 25 degrees of Celsius,
Arshanitsa, Alexandr +3 more
core
New urea-absorbing polymers for artificial kidney machines [PDF]
, 1975 Etherified polymer is made from modified cellulose derivative which is reacted with periodate. It will absorb 2 grams of urea per 100 grams of polymer.
Hsu, G. C. +2 more
core +1 more source
Synthesis of retro-inverso peptides employing isocyanates of Nα-Fmoc-amino acids/peptide acids catalyzed by DMAP [PDF]
, 2006 The Goldschmidt-Wick type reaction between isocyanates of Nα-Fmoc-amino acids/peptide acids and Nα-Boc-/Z-/Bsmoc-amino acids catalyzed by DMAP leads to the incorporation of a reversed peptide bond.
Sureshbabu, V.V., Venkataramanarao, R.
core +1 more source
New methodology for specific inhalation challenges with occupational agents
Respiratory Research, 2010 Background Inhalation challenges are used for diagnosing occupational asthma (OA). The initial methodology consisted of a "realistic" exposure without monitoring nor controlling exposure.
Malo Jean-Luc +3 more
doaj +1 more source
Aliphatic isocyanurates and polyisocyanurate networks [PDF]
, 2016 The production, processing, and application of aliphatic isocyanate (NCO)-based thermosets such as polyurethane coatings and adhesives are generally limited by the surprisingly high viscosity of tri-functionality and higher-functionality isocyanurates ...
Bayer +24 more
core +6 more sources
Drug‐coated balloons: From conventional designs to next‐generation innovations in vascular therapy
BMEMat, EarlyView.This review traces the evolution of drug‐coated balloons (DCBs) from conventional designs to next‐generation platforms. We highlight innovations in balloon engineering, coating technologies, and therapeutic agents that enhance localized drug delivery while addressing challenges in efficiency, safety, and biocompatibility for vascular and emerging non ...
Lu Zhang +5 more
wiley +1 more source
Thermally activated foaming compositions Patent [PDF]
, 1969 Storage stable, thermally activated foaming compositions for erecting and rigidizing mechanisms of thin sheet solar ...
Welling, C. E.
core +1 more source
Chemistry – A European Journal, EarlyView.Three 2‐phosphinophenylaluminum dichloride complexes were synthesized and characterized as novel intramolecular FLPs. These FLP systems exhibit high Lewis acidity and effectively activate challenging substrates including aliphatic ketones, imines, and esters. DFT analysis revealed that strain release and Al–P dynamics govern their reactivity. Abstract (
Yoshihiro Nishimoto +2 more
wiley +1 more source
Solid-state Synthesis of 1-Ethoxycarbonyl-4-substituted-semicarbazides
Molecules, 2003 A rapid and simple method for the preparation of 1-ethoxycarbonyl-4-substituted-semicarbazides has been developed. As examples the reaction of six different isocyanates with ethyl carbazate under solvent-free conditions are reported.
Hedayat A. Taghizadeh +2 more
doaj +1 more source
It's a Gas: Bioconjugation With Vapor‐Phase Reagents
Chemistry – A European Journal, EarlyView.Gaseous reagents are an emerging class of bioconjugation reagents that can offer alternative selectivity paradigms for the construction of precise bioconjugates. A variety of both inert and highly reactive gases have recently been developed for bioconjugation use.
Yuxuan Ding, Jun Ohata, Zachary T. Ball
wiley +1 more source