STUDY ON POLYMERIZATION MECHANISM OF 3, 9,-DIALLYL-3, 9, -DIBENZYL-1, 5, 7, 11-TETRAOXASPIRO 5, 5 UNDECANE

摘要

A new monomer, 3,9-diallyl-3, 9-dibenzyl-1, 5,7,11 - tetraoxa- spiro [5,5] undecane （6） was prepared by the reaction of 2- allyl- 2’ - benzyl- propanediol - 1.3 with dibutyltin oxide, and then treated with CS2. Monomer 4 could be initiated by cationic initiators to give a viscous polymer （white powder in the case of polymerization at 0℃）. Upon the NMR and IR spectra of the obtained polymer, the components and their relative amount were estimated. The polymerization mechanism was discussed.