Basic-Gyan

" Chain-growth polymerization or addition polymerization reaction is a polymerization technique where unsaturated monomer (means containing double and triple bonds in their molecular formula) molecules add onto the active site on a growing polymer chain one at a time ".  Since, we know that  d epending on this active site present on the growing polymer chain, there are three types of addition polymerization:  free radical polymerization, ionic polymerization, and coordination polymerization.  Free radical polymerization is one of those types of additional polymerization in which the active site is free radical. In this, initiators are used to generate free radicals. Free radical is denoted as "M•".  ➛ Initiator molecules are of the following types; (a) Thermal initiators (such as peroxides, azo-compounds) (b) Photochemical initiators (such as Disulfides, ketones, Azo, Peroxides,etc.) (c) Redox initiators (such as Fenton reagent) (d) Ionising initiators ( su...

Chain-growth polymerization reaction is one of two processes to convert a monomer molecule into a polymer. Chain-growth polymerization reaction is a polymerization technique where unsaturated monomer (means containing double and triple bonds in their structural formula) molecules add onto the active site on a growing polymer chain one at a time.           Depending on this active site present on the growing polymer chain, there are three types of addition polymerization: free radical polymerization , ionic polymerization , and coordination polymerization . Out of which, coordination polymerization is rarely observed, so we will not study about it. Thus, Let us study briefly about all these types of addition polymerization reactions; (A) Free radical polymerization – Free radical polymerization is defined as a type of addition polymerization in which the active centres are free radical. It is denoted as "M•". Since free radical polymerization is a type of ad...