Synthesis of Precision Alkyl-Branched Polyolefins

Although relatively straightforward, the syntheses of the polymers used in modeling studies described here are rather tedious. This is in large part because the synthesis of symmetric alkyl branched dienes requires several steps, often with dismal overall yields. In addition, a different synthetic scheme was necessary for each type of branch studied. The synthesis of these materials has been discussed in detail in a number of recent reviews (Baughman and Wagener, 2005 Berda et al, 2006 Lehman and Wagener, 2003 Rojas et a/., 2008). 

X 3 favors proton abstraction from t-BuOH + /-BuOK 

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