363170
Alcool polyvinylique
Mw 13,000-23,000, 87-89% hydrolyzed
Synonyme(s) :
PVA
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A propos de cet article
Formule linéaire :
[-CH2CHOH-]n
Numéro CAS:
NACRES:
NA.23
UNSPSC Code:
12352104
MDL number:
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Laissez-nous vous aiderInChI
1S/C2H4O/c1-2-3/h2-3H,1H2
InChI key
IMROMDMJAWUWLK-UHFFFAOYSA-N
form
crystalline powder, crystals or granules, powder
mol wt
Mw 13,000-23,000
falling ball
3.5-4.5 cP, 4 % in H2O(20 °C)(lit.)
Quality Level
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Catégories apparentées
General description
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.
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.
Features and Benefits
- Good mechanical and chemical stability
- Non-toxic
- Tunable hydrophilicity
- Resistance to solvents Capable of forming films
Classe de stockage
11 - Combustible Solids
wgk
WGK 1
flash_point_f
No data available
flash_point_c
No data available
ppe
Eyeshields, Gloves, type N95 (US)
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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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