1. 
   polydimethylsiloxane
   (from the article `industrial polymers, major`) The most common siloxane polymer, polydimethylsiloxane, is formed when the chlorine atoms of the monomer, dichlorodimethylsilane (Cl2Si[CH3]2), are ...
   Found op http://www.britannica.com/eb/a-z/p/90
   
   
2. 
   Polydimethylsiloxane
   ==Chemistry== The chemical formula for PDMS is CH3[Si(CH3)2O]nSi(CH3)3, where n is the number of repeating monomer [SiO(CH3)2] units. Industrial synthesis can begin from dimethylchlorosilane and water by the following net reaction: During polymerization, this reaction evolves potentially hazardous ...
   Found op http://en.wikipedia.org/wiki/Polydimethylsiloxane
   
   

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