Polymer Science 3 min read
SUSPENSION POLYMERIZATION
Suspension polymerization, sometimes called bead, pearl or granular polymerization, is one of the most widely used polymerization techniques. It is essentially a water or solvent cooled…
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Polymer Science 4 min read
EMULSION POLYMERIZATION
Emulsion polymerization is one of the most important methods for the polymerization of a large number of monomers, like vinyl…
Polymer Science 3 min read
BULK OR MASS POLYMERIZATION
In mass or bulk polymerization, the reaction mixture consists mainly of monomers, and in the case of free-radical or ionic…
Polymer Science 3 min read
ANIONIC POLYMERIZATION
Anionic polymerization is a form of chain-growth polymerization that encompasses the polymerization of vinyl monomers with strong electronegative groups. This…
Polymer Science 2 min read
CATIONIC POLYMERIZATION
Many vinyl monomers readily polymerize in the presence of very small amounts of catalyst of the type used in Friedel-Crafts…
Polymer Science 2 min read
METALLOCENE COORDINATION CATALYST
Metallocenes are very effective metal catalyst. They consist of minute particles of positively charged metal ions sandwiched between two cyclopentadienyl…
Polymer Science 2 min read
FREE RADICAL POLYMERIZATION
Free radical polymerization (FRP) is one of the most important synthesis routes for obtaining vinyl polymers. The relatively non-specific nature…
Polymer Science 2 min read
Initiation
Initiation is the mechanism which starts the polymerization process. Vinyl monomers are quite easily polymerized by a variety of activating…
Polymer Science 3 min read
Polymerization – Addition Polymers
We enjoy the benefits of Styrofoam containers, but don’t often think about where they end up. Styrofoam materials do not…
General Concepts 8 min read
Polymers and Polymerization Reactions
Prior to the early 1920’s, chemists doubted the existence of molecules having molecular weights greater than a few thousand. This…
