Science of Synthesis

Periasamy, M.; Seenivasaperumal, M.; Sivakumar, S., Science of Synthesis, (2005) 6, 316.

Boroxin-ring-containing additives Bx(n) {B3O3[O(CH2CH2O)nMe]3} were found to be compatible with a wide variety of polymer hosts. Polymer electrolytes ‌44‌–‌46‌ exhibiting room temperature conductivities of up to 10−5 S·cm−1 were obtained by incorporation of Bx(n) and lithium trifluoromethanesulfonate into poly(methyl methacrylate) and propylene oxide–ethylene oxide copolymers (‌Scheme 24‌).[‌42‌]

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Two methods have been used for the preparation of boroxin additives ‌44‌–‌46‌: reaction of poly(ethylene glycol) monomethyl ether with boric acid to give polymers ‌44‌, or reaction with boric oxide to give polymers ‌45‌ and ‌46‌, as illustrated in ‌Scheme 24‌. A variety of boroxin additives ‌44‌–‌46‌ with different oligoether side-chain lengths have been prepared.[‌42‌]

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References