Results 91 to 100 of about 126,507 (309)

Preparation of Plywood Using Starch Adhesives Modified with Isocyanate

, 2010
The purpose of the study was to manufacture plywood using starch adhesives modified by isocyanate, the influence factors on the bonding strength and water resistance of starch adhesive were studied by different solid content, adding additives and adding ...
Li Bin Zhu, Ying Feng Zuo, Yan Hua Zhang, Jun Shen, Ji You Gu, Hai Yan Tan   +5 more
core   +1 more source

Polyurethane Foams From a Triblock Copolymer Polyol With CO2‐Derived, High‐Tg Polycarbonate Segments

Journal of Applied Polymer Science, EarlyView.
Polyurethane foam (PUF) properties are tuned by incorporating polyol with 0–15 wt% CO2‐derived poly(cyclohexene carbonate) (PCHC) segments (Tg = 104°C). Network PUFs are synthesized using CO2‐derived triblock copolymer polyol with PCHC hard segments and a polycaprolactone soft segment.
Yen‐Wen Huang, Tzu‐Pin Lin, Krishnan A. Iyer, John M. Torkelson   +3 more
wiley   +1 more source

Industrial Byproducts as Adhesive Allies: Unraveling the Role of Proteins and Isocyanates in Polyurethane Wood Bonding

BioResources
Wooden structures are becoming increasingly popular in the construction world. However, these structures often rely on synthetic adhesives, raising concerns about the environmental risks associated with their chemical composition.
Alex Mary, Pierre Blanchet, Simon Pepin, Aurélien Hermann, Stéphane Charron, Véronic Landry   +5 more
doaj   +2 more sources

Diol Chain‐Length Effects in Adipate and Succinate Polyesters for Thermoplastic Polyurethanes

Journal of Applied Polymer Science, EarlyView.
This study examines 20 aliphatic polyesters as soft segments for thermoplastic polyurethanes (TPU), synthesized from adipic or succinic acid and diols (C2, C3, C4, C5, and C6). A pronounced odd‐even effect shows that even diols crystallize, while odd diols remain amorphous.
Dario Brand, Stephanie Duettmann, Kevin Marschner, Apolline Limouzin, Brigitte Voit   +4 more
wiley   +1 more source

Dual‐Function Electrocatalysis: Simultaneous Wastewater Remediation and Hydrogen Evolution—A Comprehensive Review

Carbon Energy, EarlyView.
Replacing the oxygen evolution reaction with the electro‐oxidation of pollutants and waste streams offers an energy‐efficient route for simultaneous hydrogen production and pollutant remediation. This review summarizes the reaction mechanisms, catalyst design principles, and emerging paired‐electrolysis strategies that govern activity, selectivity ...
Safa Al‐Yahyaey, Rashid Al‐Hajri, Ala'a H. Al‐Muhtaseb, Hussein A. Younus, Mohammed Al‐Abri   +4 more
wiley   +1 more source

Rapid Determination of Residues and Migration of Seven Isocyanate Compounds in Food Composite Packaging Bags by Ultra-high Performance Convergence Chromatography [PDF]

Shipin Kexue
An ultra-high performance convergence chromatography (UPC2) method was developed to rapidly determine the residues and migration of seven isocyanate compounds in food composite packaging bags.
QIU Yue, LI Genrong, YU Qiuling, TAN Chaolan, LU Jiali, ZHANG Qing
doaj   +1 more source

Readily Accessible bTurea‐Derived Nitroxide Polarizing Agents for Dynamic Nuclear Polarization: bcTCOOKs and bcTmols

Chemistry – A European Journal, EarlyView.
Two families of bTurea‐derived biradicals, bcTmols and bcTCOOKs, were prepared as polarizing agents for dynamic nuclear polarization (DNP)‐enhanced NMR through short and efficient synthetic routes. The best‐performing biradical, bcTCOOK‐M2, containing two methyl groups on the urea bridge, provided signal enhancements of up to ∼220 at 14.1 T and 100 K ...
Ancy T. Wilson, Shubha S. Gunaga, Frederic Mentink‐Vigier, Snorri Th. Sigurdsson   +3 more
wiley   +1 more source

Determination of phenylurethane and isocyanate groups in isocyanates

, 2020
Reactions of phenylurethane and isocyanate groups of arylisocyanates with secondary amines are studied by IR spectrometry and potentiometric titration. It is found that the rate of the reaction between isocyanate groups and diethylamine is nearly independent of the solvent nature.
Evtushenko Yu.M., Zaitsev B.E., Ivanov V.M.   +2 more
openaire   +1 more source

C‐Terminal Functionalization Methods of Amino Acids, Peptides, and Proteins

Chemistry – A European Journal, EarlyView.
C‐terminal functionalization offers powerful routes to peptide and protein diversification, yet epimerization, hydrolysis, and selectivity remain key challenges. This Review surveys enzymatic, decarboxylative, and condensation strategies, highlighting advances toward chemo‐ and regioselective, protecting‐group‐free, atom‐efficient methods applicable to
Jay Hanssens, Mark Lambers, Romano V. A. Orru, Jordy M. Saya   +3 more
wiley   +1 more source

isocyanates [PDF]

, 2014
Citation: 'isocyanates' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.I03269 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source