189480
聚醋酸乙烯酯
average Mw ~80,000-120,000 by GPC, beads
别名:
聚醋酸乙烯酯
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关于此项目
线性分子式:
[CH2CH(O2CCH3)]n
化学文摘社编号:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
InChI
1S/C4H6O2/c1-3-6-4(2)5/h3H,1H2,2H3
SMILES string
COC(=O)C=C
InChI key
XTXRWKRVRITETP-UHFFFAOYSA-N
form
beads
mol wt
average Mw ~80,000-120,000 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
Quality Level
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General description
聚乙烯醇（PVAc）是一种非结晶的无规立构聚合物。它是由乙酸乙烯酯单体通过自由基聚合来制备。由于其低毒性和良好的弹性，它常被用于食品行业。PVAc膜可用作载体和口服药物的发射传感器。
Application
聚乙烯乙酸酯可用作：
- 制备气体和湿度传感器应用中聚合物纤维的起始原料。 柠檬酸掺杂的PVAc纳米纤维垫可用于开发室温下检测三甲胺气体的传感器。
- 具有控释给药性能的漂浮片的聚合物涂层。 PVAc是一种赋形剂，可以确保可靠安全的药物释放。由于聚乙烯乙酸酯涂层的低固有密度和高弹性，PVAc-基骨架片可以流动。
存储类别
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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
Cellulose nanofibrils/polyvinyl acetate nanocomposite adhesives with improved mechanical properties.
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
Susan R Sandeman et al.
Journal of colloid and interface science, 358(2), 582-592 (2011-04-05)
The textural and adsorption characteristics of a series of activated carbons (ACs), porous poly(vinyl alcohol) (PVA) gels, and PVA/AC composites were studied using scanning electron microscopy, mercury porosimetry, adsorption of nitrogen (at 77.4 K), cationic methylene blue (MB), anionic methyl
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
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