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Synthesis and Characterization of Alkali Metal Ion-Binding Copolymers Bearing Dibenzo-24-crown-8 Ether Moieties.

ABSTRACT: Dibenzo-24-crown-8 (DB24C8)-bearing copolymers were synthesized by radical copolymerization using a DB24C8-carrying acrylamide derivative and N-isopropylacrylamide monomers. The cloud point of the resulting copolymers changed in aqueous solution in the presence of cesium ions. In addition, the ¹H NMR signals of DB24C8-bearing copolymers shifted in the presence of alkali metal. This shift was more pronounced following the addition of Cs⁺ compared to Rb⁺, K⁺, Na⁺, and Li⁺ ions due to recognition of the Cs⁺ ion by DB24C8.

SUBMITTER: Wang DM

PROVIDER: S-EPMC6403618 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Synthesis and Characterization of Alkali Metal Ion-Binding Copolymers Bearing Dibenzo-24-crown-8 Ether Moieties.

Wang Da-Ming DM Aso Yuji Y Ohara Hitomi H Tanaka Tomonari T

Polymers 20181002 10

Dibenzo-24-crown-8 (DB24C8)-bearing copolymers were synthesized by radical copolymerization using a DB24C8-carrying acrylamide derivative and <i>N</i>-isopropylacrylamide monomers. The cloud point of the resulting copolymers changed in aqueous solution in the presence of cesium ions. In addition, the ¹H NMR signals of DB24C8-bearing copolymers shifted in the presence of alkali metal. This shift was more pronounced following the addition of Cs⁺ compared to Rb⁺, K⁺, Na⁺, and Li⁺ ions due to recogn ...[more]

PMID: 30961020

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