Results 181 to 190 of about 57,276 (400)
En Route Toward Sustainable Polycarbonates Via Large Cyclic Carbonates
ChemSusChem, Accepted Article.This review reports an up‐to‐date overview of the synthetic methodologies developed for the preparation of large cyclic organic carbonates with ≥ 6‐membered rings (6M‐CCs and above), highlighting the most sustainable synthetic pathways employing diols (including renewable‐based ones) and non‐hazardous carbonyl sources, e.g., linear organic carbonates ...
Francesco Della Monica +5 more
wiley +1 more source
ChemSusChem, EarlyView.This study develops the depolymerization of poly(hydroxyurethane)s prepared from five‐membered cyclic carbonates (5CCs) and amines. Based on the model reaction of hydroxyurethanes with low‐molecular weight, this study examines the decomposition behavior and reveals that the trifluoroacetic acid promotes the transformation into a 5CC efficiently.
Sho Morinaga +5 more
wiley +1 more source
Surface modified aerogel monoliths [PDF]
, 2013 This invention comprises reinforced aerogel monoliths such as silica aerogels having a polymer coating on its outer geometric surface boundary, and to the method of preparing said aerogel monoliths.
Johnston, James C. +3 more
core +1 more source
Recycling of Polyurethane via Mechanocatalytic Methanolysis/Hydrolysis
ChemSusChem, EarlyView.In this study, it is shown that up to 86% of soluble polyol can be recovered from the hydrolysis of polyurethane using a ball milling‐assisted process below 100 °C in the presence of NaOH, a small amount of H2O and a Cu/MgAlOx co‐catalyst. Polyurethane (PU) is the 6th most produced plastic on a global basis, and thus one of the most important targets ...
Bolun Wang +7 more
wiley +1 more source
Migration solvents for free isocyanates in food contact materials using experimental design [PDF]
, 2011 Agglomerated cork stoppers are currently used for still wines, semi-sparkle and gaseous wines, beer and cider. Methylene diphenyl diisocyanate (MDI) is presently the adhesive in use due to its lowest toxicity comparing with toluene diisocyanate (TDI ...
André, Catarina +3 more
core
A Roadmap for Biomass‐Driven Development of Sustainable Phase Change Materials
ChemSusChem, EarlyView.This comprehensive review advances the scientific understanding of sustainability and circularity in phase change material (PCM) fabrication by providing a strategic framework for developing composites from abundant, renewable resources. By screening biomass‐derived PCMs, carbons, and biopolymers, a roadmap is outlined for the development of ...
Alina Brzęczek‐Szafran +4 more
wiley +1 more source
The Preparation of Vinyl Isocyanate and its Copolymerization Reactions
, 1956 Yoshio Iwakura +3 more
openalex +2 more sources
Solvation chemistry in liquid electrolytes for rechargeable lithium batteries at low temperatures
EcoEnergy, EarlyView.This review discusses the solvation chemistry of the electrolyte in lithium batteries (LBs) at low temperature (LT). It highlights the Li+ solvation chemistry in LBs at LT, including the properties of the solvent, the solvation structure of Li+, strategies of tuning solvation chemistry via solvents/lithium salts, and characterization techniques of ...
Houzhen Li, Chuncheng Yan, Shuhua Wang
wiley +1 more source
Preperation Of Oil-based Polyurethanes For Biomedical Applications In The Absence Of Solvent And Catalyst [PDF]
, 2015 Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2007Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2007Poliüretanlar biyomateryaller olarak oldukça öneme sahiptirler.
Madra, Hande
core
ESC Heart Failure, EarlyView.Abstract Aims Two general phenotypes of heart failure (HF) are recognized: HF with reduced ejection fraction (HFrEF) and with preserved EF (HFpEF). To develop phenotype‐specific approaches to treatment, distinguishing biomarkers are needed. The goal of this study was to utilize quantitative metabolomics on a large, diverse population to replicate and ...
Fawaz Naeem +13 more
wiley +1 more source