CAS 9002-89-5: Poli(alcohol vinílico)
Descripción:
Poli(alcohol vinílico) (PVA) es un polímero sintético caracterizado por su solubilidad en agua, biocompatibilidad y propiedades formadoras de película. Se produce a través de la hidrólisis del poli(acetato de vinilo) y es conocido por su excelente adhesión, flexibilidad y resistencia a aceites y grasas. El PVA se utiliza típicamente en diversas aplicaciones, incluidos adhesivos, recubrimientos y películas, debido a su capacidad para formar fuertes enlaces de hidrógeno con las moléculas de agua, lo que mejora su solubilidad. El grado de hidrólisis y el peso molecular pueden influir significativamente en sus propiedades, como la viscosidad y la resistencia mecánica. El PVA también es biodegradable, lo que lo convierte en una opción respetuosa con el medio ambiente en muchas aplicaciones. Además, exhibe buena estabilidad térmica y puede ser modificado para mejorar sus propiedades para usos específicos, como en aplicaciones biomédicas o como componente en materiales compuestos. En general, el PVA es un polímero versátil con una amplia gama de aplicaciones industriales y comerciales.
Fórmula:(C2H4O)x
InChI:InChI=1S/C2H4O/c1-2-3/h2-3H,1H2
Clave InChI:InChIKey=IMROMDMJAWUWLK-UHFFFAOYSA-N
SMILES:C(=C)O
Sinónimos:- 100-27H
- 100-37H
- 100-40H
- 1799S
- 1R2110
- 22-99H
- 9P75R
- 9X75Rs
- 9X75Sr
- Alvyl
- Bijam+
- Ver más sinónimos
Ordenar por
Poly(vinyl alcohol), 99.3-100.0% hydrolyzed,M.W. appr. 146,000-186,000
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:99.3-100.0%Forma y color:Granular powder, White to creamPoly Vinyl Alcohol
CAS:Polyvinyl alcohol: water-soluble, biodegradable polymer; used for biomedical applications and medical excipients.Fórmula:(C2H4O)xPureza:98%Forma y color:SolidPeso molecular:44.05Polyvinyl alcohol - n=1700 - 1800
CAS:Polyvinyl alcohol is a polymer that is synthesized by the polycondensation of vinyl acetate and hydrochloric acid. Polyvinyl alcohol has been shown to be effective in treating bowel diseases, such as inflammatory bowel disease, due to its ability to bind to sodium citrate and methyl ethyl. Polyvinyl alcohol also has intramolecular hydrogen bonding, which allows for the formation of hydrogen bonds between polyvinyl alcohol molecules. The intermolecular hydrogen bonding of polyvinyl alcohol is stronger than the intramolecular type because it involves two separate molecules. Polyvinyl alcohol can be used as a thickener or stabilizer in foods, such as ice cream, salad dressing, and sauces. It can also be used in pharmaceuticals as a coating for tablets or capsules. As an antimicrobial agent, polyvinyl alcohol has been shown to have inhibitory effects on enzymes that are involved with bacterial growth (e.g., aminopeptidase).Fórmula:C2H4OnPureza:Min. 95%Forma y color:White To Off-White SolidPolyvinyl alcohol, 86-89% hydrolyzed, low molecular weight
CAS:Polyvinyl alcohol is used as a biological reagent to test the dispersion of zinc oxide nanoparticles. It is an effective protein resistant material and is used to stabilize gold colloids of diameter 3-8nm. It is used as an emulsion polymerization aid to make polyvinyl acetate, as a protective colloid, as a film used in the water transfer printing process, as a surfactant for the formation of polymer encapsulated nanobeads, as an embolization agent in medical procedures and as a fixative for specimen collection. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:86-89%Forma y color:White to pale yellow, Granular powderPoly(vinyl alcohol), 98.0-98.8% hydrolyzed, M.W. approx. 31,000-50,000
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:98.0-98.8%Forma y color:Crystalline powder or crystals, White to creamPolyvinyl alcohol, 98-99% hydrolyzed, high molecular weight
CAS:Polyvinyl alcohol is used in food industries as a binding and coating agent. Its viscosity favors the application as coating agent to tablets and capsules. Mixed-matrix membrane prepared by dispersion of NaA zeolite particles is used to study the pervaporative separation of water-butanol mixtures. Polyvinyl alcohol /gelatin based biocompatible polymeric scaffolds have been developed for 3D cancer models. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:98-99%Forma y color:Granular powder, Pale creamPoly(Vinyl Alcohol)
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nForma y color:Almost white to light yellow, PowderRef: AC-39676
Producto descatalogadoPoly(vinyl alcohol), 95.5-96.5% hydrolyzed, M.W. approx. 85,000-124,000
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:95.5-96.5%Forma y color:White to cream, Granular powderPolyvinyl Alcohol
CAS:Producto controladoApplications Polyvinyl Alcohol is a useful research chemical. Polyvinyl Alcohol/ZnS composite films are used as nanocatalyst for organ dye degradation. References Khan, R., et al.: ACS Omega, 4, 6144 (2019)Fórmula:(C2H4O)nForma y color:NeatPeso molecular:44.05Poly(vinyl alcohol)
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nForma y color:Powder or crystals, White to light yellowPolyvinyl alcohol, 86-89% hydrolyzed, medium molecular weight
CAS:Polyvinyl alcohol is used as a biological reagent to test the dispersion of zinc oxide nanoparticles. It is an effective protein resistant material and is used to stabilize gold colloids of diameter 3-8nm. It is used as an emulsion polymerization aid to make polyvinyl acetate, as a protective colloid, as a film used in the water transfer printing process, as a surfactant for the formation of polymer encapsulated nanobeads, as an embolization agent in medical procedures and as a fixative for specimen collection. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:86-89%Forma y color:White to off-white, PowderPoly(vinyl alcohol), 87.0-89.0% hydrolyzed, M.W. approx. 31,000-50,000
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:87.0-89.0%Forma y color:from the manufacturing process, White to light yellow, Granular powder, May contain yellow to brown particlesPoly(vinyl alcohol), 92.0-94.0% hydrolyzed,M.W. approx. 146,000-186,000
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:92.0-94.0%Forma y color:Granular powder, White to creamPoly(vinyl alcohol), 88% hydrolyzed, average M.W. 145,000-180,000
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:88%Forma y color:White to off-white, Granular solidPoly(vinyl alcohol), 87.0-89.0% hydrolyzed, M.W. approx. 13,000-23,000
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:87.0-89.0%Forma y color:White to cream, Granular powderPoly(vinyl alcohol), average Mw 85,000-124,000
CAS:Please enquire for more information about Poly(vinyl alcohol), average Mw 85,000-124,000 including the price, delivery time and more detailed product information at the technical inquiry form on this pagePureza:80%MinPolyvinyl alcohol,Mw~67,000
CAS:Polyvinyl alcohol is a polymer that is used as a coating material, adhesive, and in the manufacture of certain plastics. It has been shown to have anti-inflammatory properties and may be effective for bowel disease. Polyvinyl alcohol can be prepared by hydrolysis of polyvinyl acetate using sodium carbonate or zirconium oxide as catalysts. The enzyme activities of polyvinyl alcohol are dependent on the molecular weight, which is usually between 67,000 and 1 million. Polyvinyl alcohol can be manufactured by esterification of vinyl acetate with anhydrous ethanol followed by hydrolysis with sodium hydroxide. It has also been shown to inhibit bacterial growth by forming hydrogen bonds with the bacterial cell wall.Fórmula:(C2H4O)xPureza:Min. 95%Forma y color:PowderPoly(vinyl alcohol), 88% hydrolyzed, average M.W. 85,000 to 120,000
CAS:This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.Fórmula:(C2H4O)nPureza:88%Forma y color:White to off-white, Granular solid
