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189480

Sigma-Aldrich

Poly(vinyl acetate)

average Mw ~100,000 by GPC, beads

Sinónimos:

Polyvinyl acetate

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About This Item

Fórmula lineal:
[CH2CH(O2CCH3)]n
Número de CAS:
9003-20-7
MDL number:
MFCD00084457
UNSPSC Code:
12162002
PubChem Substance ID:
24851384
NACRES:
NA.23

form

beads

mol wt

average Mw ~100,000 by GPC

viscosity

17-21 sec.(25 °C, Ford, no. 4)(lit.)

density

1.18 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

COC(=O)C=C

InChI

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

InChI key

XTXRWKRVRITETP-UHFFFAOYSA-N

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General description

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.

Application

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.

Storage Class

11 - Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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
Dong-Hao Zhang et al.
Bioresource technology, 124, 233-236 (2012-09-20)
Poly(vinyl acetate-acrylamide) microspheres were synthesized in the absence or presence of isooctane via suspension polymerization and utilized as carriers to immobilize Candida rugosa lipase. When the hydrophobic/hydrophilic surface characteristics of the microspheres were modified by changing the ratio of vinyl
Il Gyu Kang et al.
American journal of rhinology & allergy, 24(5), 392-395 (2011-01-20)
The aim of this study was to evaluate the effect of repeated expandable polyvinyl acetate (EPA) packing for preventing stenosis of the frontal sinus ostium after patients undergo functional endoscopic sinus surgery (FESS). A nonrandomized, prospective study of 20 patients
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