Abstract
The thermally-induced cyclodimerization of aryl-trifluorovinyl ethers (TFVE, 1) readily affords highly stable and processible perfluorocyclobutane (PFCB, 2) polymers, many of which have useful optical, mechanical, and/or surface properties. We report here on the synthesis and characterization of some novel TFVE and PFCB functionalized phosphorus-based polymers systems. These new polymers have been prepared by three general methods: (1) condensation polymerization of appropriate TFVE-substituted Si-N-P precursors, (2) deprotonation-substitution reactions of preformed poly(methylphenyl-phosphazene), and (3) cyclodimerization-polymerization of various TFVE-substituted phosphorus derivatives.
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