Azide-based heterobifunctional poly(ethylene oxide)s: NaN3-initiated “living” polymerization of ethylene oxide and chain end functionalizations

文献情報

出版日 2015-11-02

DOI 10.1039/C5PY01444A

インパクトファクター 5.582

著者

Sera Yang, Youn Kim, Hyeong Cheol Kim, Abu B. Siddique, Gyusaang Youn, Hyun Jun Kim, Hyeon Jong Park, Jae Yeol Lee, Sehoon Kim, Jungahn Kim

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要旨

In this study, sodium azide (NaN3) was employed as a functional anionic initiator to polymerize ethylene oxide in N,N-dimethylformamide (DMF) leading to the production of the reactive polymeric alkoxide. The molecular weights of all products were controlled within the 2800–10 000 g mol−1 range on the basis of the stoichiometric balance. NaN3-initiated polymerization of ethylene oxide (EO) and chain end functionalization of the resulting alkoxide were found to be a simple and efficient method for synthesizing heterobifunctional PEOs. The reaction route via chain end tosylation of α-azide PEOs was found to yield almost quantitative functionalizations for the synthesis of α-azide-ω-tosyl PEO, α-azide-ω-thiol PEO, and α-amine-ω-thiol PEO (over 98 mol%).

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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Azide-based heterobifunctional poly(ethylene oxide)s: NaN3-initiated “living” polymerization of ethylene oxide and chain end functionalizations

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