Free Radical Polymerization Of A Vinyl Monomer

Mechanism of free radical polymerization.

Free radical polymerization of a vinyl monomer.

Virtually all of the monomers described above are subject to radical polymerization. Free radical polymerization frp is a method of polymerization by which a polymer forms by the successive addition of free radical building blocks. Colloid and polymer science 2010 288 9 1027 1030. One of the most common and useful reactions for making polymers is free radical polymerization.

Free radicals can be formed by a number of different mechanisms usually involving separate initiator molecules. That is from small molecules containing carbon carbon double bonds. Following its generation the initiating free radical adds nonradical monomer units thereby growing the polymer chain. R m rm.

The relatively non specific nature of the free radicals towards vinyl and other unsaturated monomers makes frp one of the most versatile polymerization methods. Free radical polymerization frp is one of the most important synthesis routes for obtaining vinyl polymers. It is used to make polymers from vinyl monomers that is from small molecules containing carbon carbon double bonds. Stability of growing polymer chain ends for nitroxide mediated photo living radical polymerization.

Following its generation the free radical then reacts with a vinyl monomer that is it adds to one of the electrons of the double bond of the vinyl monomer and the remaining electron becomes the new free radical. It is used to make polymers from vinyl monomers. Not many monomers in which hydrogen atoms have been replaced on both carbon atoms will polymerize. Vinyl polymers are made from vinyl monomers in a variety of ways like.

But one polymer that is made from a monomer substituted on both carbon atoms is polytetrafluoroethylene which dupont makes and calls teflon. Since this can be initiated by traces of oxygen or other minor impurities pure samples of these compounds are often stabilized by small amounts of radical inhibitors to avoid unwanted reaction. One of the most common and useful reaction for making polymers is free radical polymerization.