Polyester Vinyl Monomer

Unsaturated polyester any of a group of thermosetting resins produced by dissolving a low molecular weight unsaturated polyester in a vinyl monomer and then copolymerizing the two to form a hard durable plastic material.

Polyester vinyl monomer. The most widely used member of the category is vinyl acetate. Vinyl acetate is not as hydrolytically stable in polymers as are the structurally similar acrylic esters. The basic acrylic monomers or oligomers contain unsaturated double bonds vinyl groups and consequently cure by addition polymerization involving a free radical reaction. 23 n0 11 pp 921 922 1987 0014 3057 87 3 00 0 00 printed in great britain pergamon journals ltd synthesis of polyester poly vinyl monomer block copolymers by c i simionescu.

The polyester stickers are better than the paper ones and they are the perfect solution if you are looking for an alternative as a middle ground between the vinyl stickers and other kinds. Vinyl esters undergo homopolymerization via a radical mechanism. The polymer is then dissolved in a liquid reactive vinyl 1 2 ethylenically unsaturated monomer such as styrene vinyl toluene diallyl phthalate or methyl methacrylate to give a solution with a viscosity in the range between 2 0 and 20 0 poise. The resultant polymer can vary from a high viscosity liquid brittle to a low melt solid material.

Free radical producing compounds such as peroxides. Styrene or a similar vinyl type monomer is used to cross link the resin and form the film. The name is also used for any compound containing that group namely r ch ch2 where r is any other group of atoms. It is the ethylene iupac ethene molecule h2c ch2 with one fewer hydrogen atom.

E comanita v received 7 july 1987 abstract polycondensations were carried out between succinyl chloride 4 4 azobis 4 cyanovaleryl chloride and bisphenol a to yield copolyesters containing labile n n units. An industrially important example is. Polymers used in this class of mate rials are the unsaturated polyesters formed by reaction of unsaturated dibasic acids and dihydric alcohols. For vinyl adhesives we use a white vinyl monomer.