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| | Poly(vinyl methyl ether) Basic information |
| | Poly(vinyl methyl ether) Chemical Properties |
| Melting point | 112-144 °C | | density | 1.03 g/mL at 25 °C | | Tg | -49 | | vapor pressure | 0.03 atm ( 20 °C) | | refractive index | n20/D 1.467 | | Fp | 40 | | Water Solubility | Soluble in water | | form | clear liquid | | color | Colorless to Yellow to Orange | | Cosmetics Ingredients Functions | BINDING
FILM FORMING
HAIR FIXING | | InChI | 1S/C3H6O/c1-3-4-2/h3H,1H2,2H3 | | InChIKey | XJRBAMWJDBPFIM-UHFFFAOYSA-N | | SMILES | C(OC)(CC(*)OC)CC(OC)C* |$;;;;;*;;;;;;;;*$| | | CAS DataBase Reference | 9003-09-2 | | EPA Substance Registry System | Ethene, methoxy-, homopolymer (9003-09-2) |
| Risk Statements | 36/37/38 | | Safety Statements | 26-36/37/39 | | RIDADR | UN 1230 3/6.1/PG II | | WGK Germany | 1 | | TSCA | TSCA listed | | HS Code | 2909.19.6000 | | HazardClass | 3/6.1 | | PackingGroup | II | | Storage Class | 10 - Combustible liquids |
| | Poly(vinyl methyl ether) Usage And Synthesis |
| Uses | Poly(methyl vinyl ether) solution can be used asa precursor to synthesize thermosensitive microgels. | | Preparation | Vinyl ethers are prepared by reaction of acetylene and alcohols in the
presence of the potassium alkoxide as catalyst:
For the production of polymers, methyl, ethyl and isobutyl vinyl ethers are
the most common monomers.
Vinyl ethers are susceptible only to cationic polymerization. In a typical process, methyl vinyl ether is agitated with boron
trifluoride (BF 3. 2H20). The temperature is kept at about l0 by cooling
for 3-4 hours; the reactor is then sealed and the temperature allowed to rise
to 100C. Reaction is complete in about 10 hours and the polymer is obtained
as a viscous mass. It is interesting to note that poly(vinyl isobuty ether) may
be obtained in crystalline form by conducting polymerization at - 80 to
-60C in liquid propane using boron trifluoride etherate as initiator. This
was the first stereoregular polymerization to be achieved. Incidentally,
isotactic polymer has also been prepared by the use of Ziegler-Natta type
catalysts and this was the first indication that these catalysts could polymerize a suitable monomer by a cationic mechanism.
Poly(vinyl methyl ether) is water-soluble and is used in adhesive and textile sizes. The ethyl and isobutyl polymers find use in pressure-sensitive adhesives. | | Definition | ChEBI: A macromolecule composed of repeating methoxyethyl groups. | | Solubility in organics | Alcohols, aromatic hydrocarbons, chlorinated hydrocarbons, esters, glycols, glycol esters, water |
| | Poly(vinyl methyl ether) Preparation Products And Raw materials |
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