POLY(VINYL BUTYRAL)
Synonym(s):Poly(vinyl butyral-vinyl alcohol-vinyl acetate)
- CAS NO.：27360-07-2
- Empirical Formula: C14H24O5
- Molecular Weight: 272.34
- MDL number: MFCD00132687
- EINECS: 608-089-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:15:30
What is POLY(VINYL BUTYRAL)?
The Uses of POLY(VINYL BUTYRAL)
Ceramic binder, dry toners, wood coatings, composite fiber binders, structural adhesives and interlayer in safety glass.
Preparation
Poly(vinyl butyral) may be prepared by dissolving poly(vinyl alcohol) (PVA) in a mixture of water and methanol and adding butyraldehyde and a small amount of sulfuric acid as a condensation agent and heating to 60°-70°C. The best quality poly(vinyl butyral) is stabilized by slurrying in alkali in order to prevent viscosity changes and discolorization. Urea is also used to stabilize the pH to about 1.5.
Some processes involve saponifying poly(vinyl acetate) (PVAc) to PVA with aqueous hydrochloric acid; butyraldehyde is then added directly. The resulting poly(vinyl butyral) solution is neutralized and the product precipitated with water, washed, and dried.
Properties of POLY(VINYL BUTYRAL)
| Density | 1.083 g/mL at 25 °C (lit.) |
| refractive index | n |
| solubility | alcohols, glycol ethers and dioxane: soluble |
| form | powder |
| Dielectric constant | 3.3 - 3.9（0.0℃） |
| EPA Substance Registry System | Acetic acid ethenyl ester, polymer with 1,1-bis(ethenyloxy)butane and ethenol (27360-07-2) |
Safety information for POLY(VINYL BUTYRAL)
Computed Descriptors for POLY(VINYL BUTYRAL)
New Products
(S)-3-Aminobutanenitrile hydrochloride 4-Methylphenylacetic acid N-Boc-D-alaninol N-BOC-D/L-ALANINOL Tert-butyl bis(2-chloroethyl)carbamate 3-Morpholino-1-(4-nitrophenyl)-5,6-dihydropyridin- 2(1H)-one Furan-2,5-Dicarboxylic Acid Tropic acid 1-Bromo-3,5-Di-Tert-Butylbenzene S-2-CHLORO PROPIONIC ACID ETHYL ISOCYANOACETATE 2-Bromo-1,3-Bis(Dimethylamino)Trimethinium Hexafluorophosphate 4-IODO BENZOIC ACID 3-NITRO-2-METHYL ANILINE 1-(2,4-DICHLOROPHENYL) ETHANAMINE (2-Hydroxyphenyl)acetonitrile 4-Bromopyrazole 2-(Cyanocyclohexyl)acetic acid 4-methoxy-3,5-dinitropyridine 1-(4-(aminomethyl)benzyl)urea hydrochloride 2-aminopropyl benzoate hydrochloride diethyl 2-(2-((tertbutoxycarbonyl)amino) ethyl)malonate tert-butyl 4- (ureidomethyl)benzylcarbamate Ethyl-2-chloro((4-methoxyphenyl)hydrazono)acetateRelated products of tetrahydrofuran
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