Provided is a method for the polymerization of vinyl ethers catalyzed by complexes of a lithium salt and a polyether.
Vinyl ether polymerization.
In this work we have developed a versatile and highly efficient initiation approach based on thienyl chloride derivatives with readily available starting materials for the living cationic polymerization of vinyl ethers.
Living cationic ring opening polymerization.
A general and efficient access toward terminally functionalized poly vinyl ether s.
Shohei ida makoto ouchi mitsuo sawamoto living cationic polymerization of an azide containing vinyl ether toward addressable functionalization of polymers journal of polymer science part a.
Methyl vinyl ether can be made by reaction of acetylene and methanol in presence of a base.
For example the state of the art method uses a phenoxide ligated titanium complex to achieve 92 meso diads m in the polymerization of iso butyl vinyl ether ibve.
Vinyl ethers ch 2 chor r methyl ethyl isobutyl benzyl are very reactive vinyl monomers.
Poly vinyl ether s pves are useful materials of different applications.
The alkene portion of the molecule is reactive in many ways.
The resulting polymers exhibited precise chemical structures predetermined molecular weights and.
The resulting polymers are produced under mild and controlled conditions and are useful in adhesives and coatings as well as in other uses such as for polymer electrolytes in batteries and for viscosity.
Thienyl chloride initiated living cationic polymerization.
Macromolecules 2020 53 5 1536 1542.
It is prone to polymerization leading to formation of polyvinyl ethers.
A preferred complex is a complex of lithium tetrafluoroborate and a glyme.
Studied systems are based on i 2 hi and on zinc halides zinc chloride zinc bromide and zinc iodide.
Amazing achievements in vinyl ether ve chemistry from the first example of ve polymerization to a plethora of recent research facilitated enormous progress in ves synthesis and in design of advanced polymer materials the fundamentally important point in this subject is the remarkable versatility of ve structures that resonates with the tunability of the.
Polymerization is typically initiated with lewis acids such as boron trifluoride.