Cyanoacrylates tube bonding

With two stabilizing groups on the carbon radical, polymerization becomes even easier. A famous example is SuperGlue , which is methyl 2-cyanoacrylate. The monomer in the tube polymerizes on to any surface (wood, metal, plastic, fingers, eyelids, lips,...) catalysed by traces of moisture or air, and the bonds, once formed, are very difficult to break. The intermediate radical in this polymerization is stabilized by both CN and CC Me groups. 

Many medical and dental devices are now being assembled with cyanoacrylates to eliminate costly molding procedures. Cyanoacrylates are also being employed to eliminate the toxic solvents commonly used to bond flexibil-ized PVC in tubing joints. 

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