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363170

Sigma-Aldrich

Alcool polyvinylique

Mw 13,000-23,000, 87-89% hydrolyzed

Synonyme(s) :

PVA

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About This Item

Formule linéaire :
[-CH2CHOH-]n
Numéro CAS:
9002-89-5
Numéro MDL:
MFCD00081922
Code UNSPSC :
12352104
Nomenclature NACRES :
NA.23

Niveau de qualité

200

Forme

crystalline powder
crystals or granules
powder

Poids mol.

Mw 13,000-23,000

Chute de bille

3.5-4.5 cP, 4 % in H2O(20 °C)(lit.)

InChI

1S/C2H4O/c1-2-3/h2-3H,1H2

Clé InChI

IMROMDMJAWUWLK-UHFFFAOYSA-N

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Description générale

Polyvinyl alcohol(PVA) is a linear hydrophilicsynthetic polymer with a monoclinic crystal structure. It can be synthesized via the polymerization of vinyl esters orethers, with subsequent saponification or transesterification. Due to itsexcellent physical and chemical properties, PVA has been widely used inadhesives, fibers, paper industry, drug delivery, and tissue engineering.

Application

PVA is used as a biological reagent to test the dispersion of zinc oxide nanoparticles. PVA has been evaluated as an effective protein resistant material.2 It may be used to stabilize gold colloids of diameter 3-8nm.
Poly(vinyl alcohol) can be used as a secondary template in the synthesis of mesoporous zeolites.

It can be used to prepare a hydrogel template to produce homogeneous microparticles for sustained drug release. PVA is used as a stabilizer in micro-particle preparation due to its high tensile strength and flexibility.

Caractéristiques et avantages

  • Good mechanical and chemical stability
  • Non-toxic
  • Tunable hydrophilicity
  • Resistance to solvents Capable of forming films

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

No data available

Point d'éclair (°C)

No data available

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Certificats d'analyse (COA)

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Gold colloidal nanoparticles sized to be suitable precursors for heterogeneous catalysts
Porta F and Prati L
Metal Nanoclusters in Catalysis and Materials Science: The Issue of Size Control, 355-355 (2008)
Zinc oxide nanoparticles as selective killers of proliferating cells.
Taccola L, et al.
International journal of nanomedicine, 6, 1129-1140 (2010)
E Fortunati et al.
Carbohydrate polymers, 97(2), 825-836 (2013-08-06)
PVA bio-nanocomposites reinforced with cellulose nanocrystals (CNC) extracted from commercial microcrystalline cellulose (MCC) and from two types of natural fibres, Phormium tenax and Flax of the Belinka variety, were produced by solvent casting in water. Morphological, thermal, mechanical and transparency
Xiao-Zhu Sun et al.
Carbohydrate polymers, 94(1), 147-153 (2013-04-03)
Polyvinyl alcohol (PVA) nanofibers loaded with curcumin or its β-cyclodextrin (CD) inclusion complex were successfully prepared using an electrospinning process. The influence of curcumin or CD-curcumin complex content on fiber formation and quality was investigated. X-ray diffraction and differential scanning
Khoon S Lim et al.
Biomaterials, 34(29), 7097-7105 (2013-06-27)
Development of tissue engineering solutions for biomedical applications has driven the need for integration of biological signals into synthetic materials. Approaches to achieve this typically require chemical modification of the biological molecules. Examples include chemical grafting of synthetic polymers onto
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