How do we create polymers

dispersion in the chain length The reaction process can produce chain of various length. The polymer length can range from view monomers (oligomers) to many thousands of monomers.  Many of the chains have a backbone of carbon atoms.


Shown on the left is the chain length distribution. This distribution measures the poly-dispersity.  Depending on the application, one needs to filter the material to narrow the distribution.

 

In computer simulations of polymers one usually does not deal with poly-dispersity. All polymers are considered to have the same length.

Depending on how the reaction is set up, many topologies can be obtained. The linear chains can link to form networks with few connections between the chains (gels) or link very strongly to form rubber-like material (elastomers). The linkage can also be between different polymers to form block-co-polymers. Later on we will also look at the mixing of polymers to form novel materials. different polymer topologies
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