Vinyl Ether Polymerization

The photoinitiated polymerization of vinyl ether ve based coatings has been studied by real time infrared rtir spectroscopy.

Vinyl ether polymerization.

1 the first systematic investigations of vinyl ether polymerization began in 1928 at i g. Provided is a method for the polymerization of vinyl ethers catalyzed by complexes of a lithium salt and a polyether. They are increasingly used in radiation curing systems because of a lower toxicity profile than the commonly used acrylic monomers. Herein the unique polymerization is reviewed along with the history of ring expansion polymerization.

This article is part of the themed collection. A preferred complex is a complex of lithium tetrafluoroborate and a glyme. They rely on a chiral phosphoric acid in. It was in 1878 that wislicenus reported the transformation of ethyl vinyl ether into a viscous material in the presence of iodine.

A combination of a metal free photocatalyst a chain transfer agent and light irradiation enables the synthesis of various poly vinyl ether s with good control over molecular weight and dispersity as well as excellent chain end fidelity. Stereoselective cationic polymerization of vinyl ethers by easily and finely tunable titanium complexes prepared from tartrate derived diols. We have recently realized ring expansion cationic polymerization of vinyl ethers by using a hemiacetal ester embedded cyclic initiator that is easily synthesized. Teator and leibfarth report a general protocol to polymerize a variety of such vinyl ethers isotactically see the perspective by foster and o reilly.

Vinyl ethers undergo homopolymerization via a cationic mechanism. In the presence of diaryliodonium or triarylsulfonium photoinitiators the cationic polymerization occurs rapidly upon uv exposure and continues to proceed upon storage in the dark. Isospecific polymerization and recognition of chiral side chains titanium complexes of α α α α tetraaryl 1 3 dioxolane 4 5 dimethanol taddol derived from naturally abundant tartaric acid were demonstrated to function as highly effective. This polymerization proceeds under mild conditions.