Free Radical Vinyl Polymerization Of Teflon

The same steps are followed in the polymerization of other substituted alkenes.

Free radical vinyl polymerization of teflon. 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. Polymers are high molecular weight compounds fashioned by the aggregation of many smaller molecules called monomers. Free radical polymerization is a type of chain growth polymerization where the polymer is formed by consecutive addition of unsaturated monomer molecules to an active free radical center. Chemical characteristics of teflon chemically teflon belongs to the class of paraffin polymers.

In table 3 1 the names structures and products formed in some polymerization reactions are listed. Tetrafluoroethylene monomer nc f 2 c f 2. Free radical polymerization can be iniitated by thermal chemical or photolytic decomposition of initiator molecules. Most commonly addition polymerization is governed by free radical formation.

Free radicals can be formed by a number of different mechanisms usually involving separate initiator molecules. A linking small molecules together a type of addition. Teflon is produced from free radical vinyl polymerization of tetraflouroethylene resulting in the formation of polytetraflouroethylene or teflon. Addition polymers namely polythene teflon and polyacrylonitrile are formed by a free radical mechanism of addition polymerization.

Simple alkenes are the source of many common plastics. R m rm. The combination of mofs with the raft technique enables the synthesis of highly isotactic poly vinyl ester s with a controlled molecular weight and narrow molecular weight distribution and stereocontrolled isotactic block atactic vinyl ester block copolymers. However in this paraffin fluorine atoms replace all the hydrogen atoms.

There are two basic ways to form polymers. Terylene melamine polymer and nylon 6 6 are synthesized using condensation step growth polymerization technique. Free radical and raft polymerization of vinyl esters with different molecular dimensions are conducted in the nanochannels of metal organic frameworks mofs. Chemical reaction chemical reaction polymerization reactions.

So we are describing here the free radical mechanism of addition polymerization. Teflon is synthesized using a free radical addition or chain growth polymerization technique. Steps in the free radical polymerization of vinyl chloride.