"A chemical reaction is a process that changes the nature of chemical substances. The substances involved in a chemical reaction are the reactants. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which are in general different from the reactants. Classically, chemical reactions encompass changes that strictly involve the motion of electrons in the forming and breaking of chemical bonds, although the general concept of a chemical reaction, in particular the notion of a chemical equation, is applicable to transformations of elementary particles, as well as nuclear reactions." (Wikipedia, Chemical Reactions, 4/14/2011)

Azides
Click Reactions
    
Combinatorial Chemistry
Depolymerization  
Fluorination

Grafting    

Green Reactions /Chemistry  
Microwave assisted Polymerization   

Microwave Reactions

Plasma  Reactions   
Pyrolysis
Reactive Compatibilization
Reactive Extrusion
Ultrasonic Chemical Reactions