Authors: Tomohiro Kino Ikuyoshi Tomita
Publish Date: 2005/08/30
Volume: 55, Issue: 4, Pages: 251-258
Abstract
The πallylnickelcatalyzed living coordination polymerization of methylallene gave polymers with predictable molecular weight and narrow molecular weight distribution in high yields The polymers possessing various microstructural units ie the ratio of the 12 and the 23polymerizations produced by varying the nature of the catalyst and the solvents were subjected to the hydroboration with borane reagents such as borane tetrahydrofuran complex BH3•THF and 9borabicyclo331nonane 9BBN Subsequent oxidation gave polyalcohols whose hydroxycontent could be varied by the borane reagents used For example the quantitative conversion of the double bonds in polymethylallene into the hydroxy group was attained by the hydroboration using an excess amount of BH3•THF Thermal properties of polyalcohols were found to be dependent upon the microstructure and the hydroxycontent of the polymers
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