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The synthesis of monomers that expand on polymerization. Synthesis and polymerization of 8,10,19,20-tetraoxatrispiro[5.2.2.5.2.2]heneicosane

✍ Scribed by Endo, Takeshi ;Katsuki, Hirokazu ;Bailey, William J.

Publisher: Wiley (John Wiley & Sons)
Year: 1976
Weight: 173 KB
Volume: 177
Category: Article
ISSN: 0025-116X
DOI: 10.1002/macp.1976.021771111

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✦ Synopsis

Abstract

A spiro orthocarbonate containing two cyclohexyl groups, 8,10,19,20‐tetraoxatrispiro[5.2.2.5.2.2]heneicosane (1), was prepared. The monomer was polymerized with Lewis acids such as boron trifluoride etherate or stannic chloride as catalysts. The IR and NMR spectra indicated that the polymer was an alternating copolymer with ether and carbonate linkages. This monomer underwent expansion on polymerization.

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