Abstract
AbstractPolyethers with propargyl side chains were synthesized by the acid‐catalyzed reaction of dialdehydes 1, alkylene bis(trimethylsilyl) ethers 2, and allenyltrimethylsilane 4. When ethylene glycol bis(trimethylsilyl) ether was used as 2, only oligomer was obtained. However, the use of 2 with longer carbon chains gave the desired polyethers consisting of 1, 2, and 4 in the molar ratio 1:1:2 in good yields in the presence of 10 mol % triphenylmethyl perchlorate (TrClO4) at −20 °C. This polyether was treated with organometallic reagents such as Co complex or CuCl to give a cross‐linked polymer. This polymer synthesis is unusual in that it concurrently constructs both the polymer backbone and the functional side chains from three starting compounds. © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 43: 5440–5448, 2005
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