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189480

Sigma-Aldrich

Poly(vinyl acetate)

average Mw ~100,000 by GPC, beads

Sinonimo/i:

Polyvinyl acetate

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About This Item

Formula condensata:
[CH2CH(O2CCH3)]n
Numero CAS:
Numero MDL:
Codice UNSPSC:
12162002
ID PubChem:
NACRES:
NA.23

Forma fisica

beads

PM

average Mw ~100,000 by GPC

Viscosità

17-21 sec.(25 °C, Ford, no. 4)(lit.)

Densità

1.18 g/mL at 25 °C

Temperatura di conservazione

2-8°C

Stringa SMILE

COC(=O)C=C

InChI

1S/C4H6O2/c1-3-6-4(2)5/h3H,1H2,2H3
XTXRWKRVRITETP-UHFFFAOYSA-N

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Categorie correlate

Descrizione generale

Poly(vinyl acetate) (PVAc) is a non-crystalline, atactic polymer. It is prepared from vinylacetate monomer via free radical polymerization. It is commonly usedin the food industry due to its low toxicity and excellent flexibility. PVAc films are used as emission sensors forvehicles and in oral drug delivery products.

Applicazioni

Poly(vinyl acetate) can be used as a:
  • Starting material to prepare polymer fibers for gas and humidity sensor applications. Citric acid-doped PVAc nanofibrous mats can be used to develop sensors for trimethylamine gas at room temperature.
  • Polymer coating for floating tablets showing a controlled drug delivery. PVAc is a suitable excipient to ensure reliable and safe drug release. PVAc-based matrix tablet flow due to intrinsic low density and high elasticity of polyvinyl acetate coating.
It can also be used to prepare cellulose nanofibrils(CNF)-PVAc nanocomposite adhesives by simple mixing of CNFs suspension with PVAc and polyvinyl alcohol solution. The addition of CNFs enhances the mechanical properties of the nanocomposite.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

nwg

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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K Kolter et al.
International journal of pharmaceutics, 457(2), 470-479 (2013-10-01)
Polyvinyl acetate-based colloidal aqueous polymer dispersion Kollicoat(®) SR 30 D results in coatings characterized by moderate swelling behaviour, lipophilicity, pH-independent permeability for actives and high flexibility to withstand mechanical stress and is therefore used for controlled release coating. The colloidal
Ons Chaabouni et al.
Carbohydrate polymers, 156, 64-70 (2016-11-16)
Cellulose nanofibrils (CNFs) are nanoscale cellulose produced from renewable resources with strong reinforcing potential when included in a polymer matrix. In this work, the effect of the addition of CNFs on the properties of waterborne polyvinylacetate (PVA) adhesive was investigated.
Congming Xiao et al.
International journal of biological macromolecules, 52, 349-352 (2012-10-31)
Tailor-made conjunct of methyl cellulose (MC) and polyvinyl acetate (PVAc) was synthesized through the combination of reversible addition-fragmentation chain transfer (RAFT) polymerization and thiol-ene click reaction. MC was firstly transferred into unsaturated MC (UMC), and then covalently connected with well-defined
Seon Tae Kim et al.
International journal of pediatric otorhinolaryngology, 77(1), 113-116 (2012-11-08)
The purpose of this prospective study was to determine the effectiveness of polyurethane foam (PUF) and polyvinyl acetate (PA) as packing materials for reducing post-conchotomy bleeding, pain, and headaches. This study was a prospective, randomized and single-blinded controlled study. Fifty-two
Priscileila Colerato Ferrari et al.
Carbohydrate polymers, 91(1), 244-252 (2012-10-10)
In this work pellets containing chitosan for colonic drug delivery were developed. The influence of the polysaccharide in the pellets was evaluated by swelling, drug dissolution and intestinal permeation studies. Drug-loaded pellets containing chitosan as swellable polymer were coated with

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