Polyisocyanates are especially usefull in human health applications. However, these applications are of course very strict and should enhance human health instead of affecting it. For biomedical applications it is important using a very high purity product in order to exclude toxic impurities, starting materials, or catalytic reagents. [1] Furhtermore the used materials should not […]
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Waterborne polyurethane synthesized for leather with excellent wear and hydrolysis resistance enabled by bio-based poly(trimethylene carbonate) and l-lysine diisocyanate
The article published in Progress in Organic Coatings (DOI: 10.1016/j.porgcoat.2024.107269) discusses the development of a novel bio-based coating utilizing lysine diisocyanate (LDI). The researchers synthesized a polyurethane prepolymer by reacting LDI with a bio-based polyol derived from castor oil. This prepolymer was then cured using an environmentally friendly crosslinker to produce a coating with excellent mechanical properties […]
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HFIP (Hexafluoroisopropanol): The Versatile Fluorinated HFIP Solvent Transforming Science and Industry Hexafluoroisopropanol (HFIP), also known as 1,1,1,3,3,3-hexafluoro-2-propanol, is a unique fluorinated alcohol that has gained significant attention across multiple scientific and industrial domains. This volatile, colorless liquid offers a distinct combination of high polarity, hydrogen bonding capability, and chemical stability, making it a powerful solvent […]
Read More →Comparing Hexamethylene diisocyanate (HDI), lysine-dissocyanate (LDI), and butanediisocyanate (BDI)
Instead of HDI and LDI, BDI did not get a great attention in the any current market. BDI has a great potential like HDI and LDI. BDI has the same abilities in forming strong hydrogen bonds like HDI however, BDI does not result in toxic diamines upon degradation. BDI degrades, like LDI, into a natural […]
Read More →Biodegradable Synthetic Polymers: Focus on Polyurethanes with Isocyanates and Lactides
The global demand for environmentally sustainable materials has driven immense progress in the field of biodegradable synthetic polymers. These materials are designed to break down through natural biological processes after fulfilling their purpose, thus reducing their environmental impact. Among the various types of synthetic biodegradable polymers, polyurethanes (PUs) have gained attention for their versatility and adaptability. Recent innovations […]
Read More →Custom synthesis
At 4MedChem we distinguish between 2 categories of custom synthesis,
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