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CAS 9002-89-5

:

Poly(alcool vinylique)

Description :
Poly(alcool vinylique) (PVA) est un polymère synthétique caractérisé par sa solubilité dans l'eau, sa biocompatibilité et ses propriétés de formation de film. Il est produit par hydrolyse du poly(acétate de vinyle) et est connu pour sa excellente adhérence, sa flexibilité et sa résistance aux huiles et aux graisses. Le PVA est généralement utilisé dans diverses applications, y compris les adhésifs, les revêtements et les films, en raison de sa capacité à former de forts liaisons hydrogène avec les molécules d'eau, ce qui améliore sa solubilité. Le degré d'hydrolyse et le poids moléculaire peuvent influencer de manière significative ses propriétés, telles que la viscosité et la résistance mécanique. Le PVA est également biodégradable, ce qui en fait une option respectueuse de l'environnement dans de nombreuses applications. De plus, il présente une bonne stabilité thermique et peut être modifié pour améliorer ses propriétés pour des usages spécifiques, comme dans les applications biomédicales ou comme composant dans des matériaux composites. Dans l'ensemble, le PVA est un polymère polyvalent avec une large gamme d'applications industrielles et commerciales.
Formule :(C2H4O)x
InChI :InChI=1S/C2H4O/c1-2-3/h2-3H,1H2
Code InChI :InChIKey=IMROMDMJAWUWLK-UHFFFAOYSA-N
SMILES :C(=C)O
Synonymes :
  • 100-27H
  • 100-37H
  • 100-40H
  • 1799S
  • 1R2110
  • 22-99H
  • 9P75R
  • 9X75Rs
  • 9X75Sr
  • Alvyl
  • Voir plus de synonymes
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Degré de pureté (%)
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100
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0
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50
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90
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95
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100
21 produits concernés.
  • Poly(vinyl Alcohol) (n=approx. 2000) (degree of saponification ca. 80mol%)

    CAS :
    Couleur et forme :White to Light yellow powder to crystal

    Ref: 3B-P0804

    25g
    24,00€
    500g
    43,00€
  • Polyvinyl alcohol, 98-99% hydrolyzed, high molecular weight

    CAS :
    <p>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. </p>
    Formule :(C2H4O)n
    Degré de pureté :98-99%
    Couleur et forme :Granular powder, Pale cream

    Ref: 02-041243

    25g
    26,00€
    100g
    51,00€
    500g
    134,00€
  • Polyvinyl alcohol, 98-99% hydrolyzed, low molecular weight

    CAS :
    <p>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 colloi</p>
    Formule :(C2H4O)n
    Degré de pureté :98-99%
    Couleur et forme :Granular powder, White

    Ref: 02-041241

    25g
    23,00€
    100g
    55,00€
    500g
    130,00€
  • Polyvinyl alcohol, 86-89% hydrolyzed, medium molecular weight

    CAS :
    <p>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 colloi</p>
    Formule :(C2H4O)n
    Degré de pureté :86-89%
    Couleur et forme :White to off-white, Powder

    Ref: 02-041239

    25g
    25,00€
    100g
    48,00€
    500g
    123,00€
  • Polyvinyl alcohol, 98-99% hydrolyzed, medium molecular weight

    CAS :
    <p>Polyvinyl alcohol is used in papermaking, textiles, and in a variety of coatings. 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 nanobead</p>
    Formule :(C2H4O)n
    Degré de pureté :98-99%
    Couleur et forme :Powder, Whit to off-white to cream

    Ref: 02-041242

    25g
    43,00€
    100g
    51,00€
    500g
    134,00€
  • Polyvinyl alcohol, 86-89% hydrolyzed, low molecular weight

    CAS :
    <p>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 colloi</p>
    Formule :(C2H4O)n
    Degré de pureté :86-89%
    Couleur et forme :White to pale yellow, Granular powder

    Ref: 02-041238

    25g
    24,00€
    100g
    54,00€
    500g
    139,00€
  • Polyvinyl alcohol, 87-89% hydrolyzed, high molecular weight

    CAS :
    <p>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 colloi</p>
    Formule :(C2H4O)n
    Degré de pureté :87-89%
    Couleur et forme :White to off-white, Powder or crystals or crystalline powder or granules

    Ref: 02-041240

    25g
    25,00€
    100g
    À demander
    500g
    126,00€
  • POLY(VINYL ALCOHOL) CRS

    CAS :
    POLY(VINYL ALCOHOL) CRS
    Formule :C2H6O
    Masse moléculaire :46.0684

    Ref: 41-Y0001550

    100mg
    115,00€
  • Polyvinyl Alcohol

    CAS :
    Polyvinyl alcohols, whether or not containing unhydrolyzed acetate groups
    Formule :H(C2H4O)m(C4H6O2)nH
    Couleur et forme :Powder
    Masse moléculaire :46.0684
  • Polyvinyl Alcohol (PVA)

    CAS :
    Formule :C2H4On
    Couleur et forme :White To Off-White Solid
    Masse moléculaire :86000 (average)

    Ref: 4Z-P-195001

    5mg
    À demander
    10mg
    444,00€
    25mg
    635,00€
    50mg
    825,00€
    100mg
    À demander
  • Poly(Vinyl Alcohol)

    CAS :
    Poly(Vinyl Alcohol)
    Degré de pureté :Mowiol(R) 40-88, Mw ~205000

    Ref: 54-OR1076718

    ne
    À demander
  • Poly(vinyl alcohol)

    CAS :
    Poly(vinyl alcohol)
    Degré de pureté :2088

    Ref: 54-OR97927

    1kg
    35,00€
    500g
    31,00€
  • Poly Vinyl Alcohol

    CAS :
    Poly Vinyl Alcohol
    Degré de pureté :≥95%
    Masse moléculaire :44.05g/mol

    Ref: 54-BUP19564

    1g
    53,00€
  • Poly(vinyl Alcohol) (n=approx. 1700)

    CAS :
    Couleur et forme :White to Almost white powder to crystal

    Ref: 3B-P0469

    25g
    24,00€
    500g
    43,00€
  • Poly Vinyl Alcohol

    CAS :
    <p>Polyvinyl alcohol: water-soluble, biodegradable polymer; used for biomedical applications and medical excipients.</p>
    Formule :(C2H4O)n
    Degré de pureté :98%
    Couleur et forme :Solid
    Masse moléculaire :30000-70000 (Average)
  • Polyvinyl Alcohol

    Produit contrôlé
    CAS :
    <p>Applications Polyvinyl Alcohol is a useful research chemical. Polyvinyl Alcohol/ZnS composite films are used as nanocatalyst for organ dye degradation.<br>References Khan, R., et al.: ACS Omega, 4, 6144 (2019)<br></p>
    Formule :(C2H4O)n
    Couleur et forme :Neat
    Masse moléculaire :44.05

    Ref: TR-P699323

    1g
    70,00€
    5g
    127,00€
    10g
    232,00€
  • Polyvinyl alcohol,Mw~67,000

    CAS :
    <p>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.</p>
    Formule :(C2H4O)x
    Degré de pureté :Min. 95%
    Couleur et forme :Powder

    Ref: 3D-FP178836

    250g
    334,00€
    500g
    471,00€
  • Poly(vinyl alcohol), average Mw 150,000 - 200,000

    CAS :
    <p>Please enquire for more information about Poly(vinyl alcohol), average Mw 150,000 – 200,000 including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>
    Formule :(C2H4O)x
    Degré de pureté :(Hydrolysis) 98.0 To 99.9 Mol-%

    Ref: 3D-FP184261

    10kg
    863,00€
    25kg
    1.708,00€
  • Polyvinyl alcohol - Mw 67,300 - 90,000

    CAS :
    <p>Polyvinyl alcohol is a water-soluble polymer that can be synthesized by the hydrolysis of polyvinyl acetate. It has been used as a model system to study the reaction mechanism and enzymatic activity of polyvinyl alcohol. The hydrolysis of polyvinyl acetate yields vinyl acetate, which then reacts with water to form polyvinyl alcohol. Polyvinyl alcohol can be synthesized by the addition of benzalkonium chloride or x-ray diffraction data. Polyvinyl alcohol is also present in many autoimmune diseases, such as lupus erythematosus. It is often used for wound dressings due to its ability to absorb fluids and promote healing. Polyvinyl alcohols are also used in laser ablation because they do not burn easily and are low cost.</p>
    Formule :C2H4On
    Degré de pureté :(Hydrolysis) 98.0 To 99.9 Mol-%
    Couleur et forme :Powder

    Ref: 3D-FP30595

    2kg
    863,00€
  • Polyvinyl alcohol,Mw 9000-10000

    CAS :
    <p>Please enquire for more information about Polyvinyl alcohol,Mw 9000-10000 including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>
    Formule :(C2H4O)x
    Degré de pureté :Min. 95%

    Ref: 3D-FP182240

    1kg
    863,00€
  • Poly(vinyl alcohol), Alcoholysis degree: ≥98 mol%, 54.0-66.0 mPa.s

    CAS :
    Formule :C2H4O
    Degré de pureté :%
    Couleur et forme :Solid
    Masse moléculaire :44.0526