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polyurethane
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class=skin-invert-image|thumb|right|Polyurethane synthesis: the urethane groups −NH−(C=O)−O− link the molecular units, resulting in a polymer consisting of an alternating chain of two monomers. thumb|A kitchen sponge made of polyurethane foam
Research
24,482 papers- Recent Advancements in Polyurethane-based Tissue Engineering.ACS applied bio materials · 2023
- An overview of polyurethane biomaterials and their use in drug delivery.Journal of controlled release : official journal of the Controlled Release Society · 2023
- Lignin-Based Polyurethane: Recent Advances and Future Perspectives.Macromolecular rapid communications · 2021
- Recent Advances in Polyurethane/POSS Hybrids for Biomedical Applications.Molecules (Basel, Switzerland) · 2021
- Polyurethane elastomer biostability.Journal of biomaterials applications · 1995
via PubMed
Wikidata facts
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- Commons category
- Polyurethane foam
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~35 min read
Article
21 sectionsContents
- History
- Chemistry
- Raw materials
- Isocyanates
- Polyols
- Bio-derived materials
- Chain extenders and cross linkers
- Catalysts
- Surfactants
- Production
- Health and safety
- Manufacturing
- Dispensing equipment
- Tooling
- Applications
- Degradation and environmental fate
- Effects of visible light
- Hydrolysis and biodegradation
- See also
- References
- External links
class=skin-invert-image|thumb|right|Polyurethane synthesis: the urethane groups −NH−(C=O)−O− link the molecular units, resulting in a polymer consisting of an alternating chain of two monomers. thumb|A kitchen sponge made of polyurethane foam
Polyurethane (; often abbreviated as PUR and PU) is a class of polymers composed of organic units joined by carbamate (urethane) links. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane refers to a group of polymers. Unlike polyethylene and polystyrene, polyurethanes can be produced from a wide range of starting materials, resulting in various polymers within the same group. This chemical variety produces polyurethanes with different chemical structures leading to many different applications. These include rigid and flexible foams, and coatings, adhesives, electrical potting compounds, and fibers such as spandex and polyurethane laminate (PUL). Foams are the largest application accounting for 67% of all polyurethane produced in 2016.