Results 21 to 30 of about 126,507 (309)
Study of the catalytic selectivity of an aqueous two-component polyurethane system by ftir spectroscopy [PDF]
Hemijska Industrija, 2003 The difficulty in formulating a two component waterborne polyurethane, is the isocyanate-water side reaction, which can lead to gassing/foaming, loss of isocyanate functionality, low gloss and a reduced pot life.
Stamenković Jakov V. +2 more
doaj +1 more source
The Effects of Acetylated Poplar Particles on Applicational Properties of manufactured Particleboards with Isocyanate Resin [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2009 The capability of acetylated poplar particles with isocyanate resinin manufacturing particleboard was investigated. The acetylation degrees at high, medium, and zero (control) levels and type of resin (isocyanate and urea formaldehyde) were considered as
Hamideh Abdolzadeh, Kazem Doost hosseini
doaj +1 more source
Sustained Release Drug Delivery Applications of Polyurethanes
Pharmaceutics, 2018 Since their introduction over 50 years ago, polyurethanes have been applied to nearly every industry. This review describes applications of polyurethanes to the development of modified release drug delivery.
Michael B. Lowinger +3 more
doaj +1 more source
Cylindrical IR-ATR Sensors for Process Analytics
Sensors, 2020 Infrared attenuated total reflection (ATR) spectroscopy is a common laboratory technique for the analysis of highly absorbing liquids and solids. However, in a process environment, maintaining a sufficient sample exchange and cleaning of the sensitive ...
Armin Lambrecht +4 more
doaj +1 more source
Isocyanate toughened pCBT: Reactive blending and tensile properties
eXPRESS Polymer Letters, 2013 Cyclic butylene terephthalate oligomers (CBT) were reacted in a ring-opening polymerization with three types of isocyanates: a bifunctional aromatic type, a bifunctional aliphatic type and a polymeric aromatic isocyanate.
T. Abt +3 more
doaj +1 more source
Molecules, 2023 Due to growing concerns about environmental issues and the decline of petroleum-based resources, the synthesis of new biobased compounds for the polymer industry has become a prominent and timely topic.
Aliénor Delavarde +4 more
doaj +1 more source
Polymers, 2020 Developing polyols derived from natural sources and recycling materials attracts great interest for use in replacing petroleum-based polyols in polyurethane production.
A. Ivdre +5 more
semanticscholar +1 more source
, 2022 Supplemental Material, sj-pdf-2-tih-10.1177_07482337221079433 for Emission of methylene diphenyl isocyanate and methylene diamine during use of cure-in-place methylene diphenyl isocyanate-based consumer products by Daniel Karlsson, Thomas Merz and Volker
Thomas Merz (2251153) +2 more
core +1 more source
Isocyanate-Free Routes to Polyurethanes and Poly(hydroxy Urethane)s.
Chemical Reviews, 2015 International audienceGreener routes to polyurethanes are required and arouse a growing interest in the academic and industrial communities. To this purpose, the depletion of fossil resources exacerbates the need of renewable materials.
Lise Maisonneuve +4 more
semanticscholar +2 more sources
Synthesis and biological evaluation of novel urea and thiourea derivatives of valacyclovir [PDF]
Journal of the Serbian Chemical Society, 2014 A series of novel urea and thiourea derivatives of valacyclovir were efficiently synthesized in high yields and evaluated their antiviral activity.
Katla Ramana Venkata +4 more
doaj +1 more source