Free Radical Vinyl Polymerization Of Teflon

Simple alkenes are the source of many common plastics.

Free radical vinyl polymerization of teflon.

Free radical polymerization last updated save as pdf page id 35129 radical chain growth polymerization contributors all the monomers from which addition polymers are made are alkenes or functionally substituted alkenes. Most commonly addition polymerization is governed by free radical formation. Addition polymers namely polythene teflon and polyacrylonitrile are formed by a free radical mechanism of addition 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.

Free radical polymerization frp is a method of polymerization by which a polymer forms by the successive addition of free radical building blocks. However in this paraffin fluorine atoms replace all the hydrogen atoms. Teflon is synthesized using a free radical addition or chain growth polymerization technique. Chemical reaction chemical reaction polymerization reactions.

Steps in the free radical polymerization of vinyl chloride. 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. So we are describing here the free radical mechanism of addition polymerization. In table 3 1 the names structures and products formed in some polymerization reactions are listed.

Terylene melamine polymer and nylon 6 6 are synthesized using condensation step growth polymerization technique. The same steps are followed in the polymerization of other substituted alkenes. Free radical and raft polymerization of vinyl esters with different molecular dimensions are conducted in the nanochannels of metal organic frameworks mofs. Chemical characteristics of teflon chemically teflon belongs to the class of paraffin polymers.

The plastics that have so changed society and the natural and synthetic fibres used in clothing are polymers. Tetrafluoroethylene monomer nc f 2 c f 2. A linking small molecules together a type of addition. Free radical polymerization can be iniitated by thermal chemical or photolytic decomposition of initiator molecules.

There are two basic ways to form polymers. Polymers are high molecular weight compounds fashioned by the aggregation of many smaller molecules called monomers. Teflon is produced from free radical vinyl polymerization of tetraflouroethylene resulting in the formation of polytetraflouroethylene or teflon.