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Formation of interfacial molecular film and metal‐trapping function of azacalixarene‐containing copolymers having spherulite‐forming ability
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2024-04-10 , DOI: 10.1002/pen.26735
Yuto Otsuki 1 , Ryoma Terui 2 , Yuji Shibasaki 3 , Atsuhiro Fujimori 1
The interfacial molecular film behavior of a newly synthesized copolymer having spherulite‐forming ability and consisting of an azacalixarene moiety and a polyethylene glycol linker was investigated. Furthermore, the ability of the azacalixarene ring in the copolymer Langmuir monolayer to trap metals from the subphase was examined. The copolymer formed a monolayer at the air/water interface with high‐density packing. In addition, the corresponding copolymer formed a stable interfacial monolayer whose behavior did not change significantly as the temperature of the subphase changed. The monolayer morphology exhibited a dot‐like crystalline domain. When the subphase contained cadmium ions, the cyclic moiety showed the ability to trap the metal cations. In this case, the distortion angle of the cup‐shaped conformation of the cyclic moiety in the organized molecular film expanded after metal trapping.Highlights LB film of a copolymer containing azacalixarene and PEG units was prepared. The copolymer formed a dense packing in the LB film. Copolymer film formed a surface morphology containing crystalline grains. The copolymer trapped Cd ions in the azacalixarene ring from the subphase. Due to trapping of Cd ions, the distortion angle of the ring widened by 7°.
中文翻译:
具有球晶形成能力的含氮杂杯芳烃共聚物的界面分子膜的形成和金属捕获功能
研究了新合成的具有球晶形成能力、由氮杂杯芳烃部分和聚乙二醇连接体组成的共聚物的界面分子膜行为。此外,还检查了共聚物朗缪尔单层中氮杂杯芳烃环从面下相捕获金属的能力。该共聚物在空气/水界面形成单层并具有高密度堆积。此外,相应的共聚物形成了稳定的界面单层,其行为随着面下相温度的变化没有显着变化。单层形态呈现点状晶域。当面相含有镉离子时,环状部分表现出捕获金属阳离子的能力。在这种情况下,有机分子膜中环状部分的杯形构象的扭曲角在金属捕获后扩大。 制备了含有氮杂杯芳烃和PEG单元的共聚物的LB膜。 共聚物在LB膜中形成致密堆积。 共聚物膜形成含有晶粒的表面形态。 该共聚物将 Cd 离子从面下相捕获到氮杂杯芳烃环中。 由于Cd离子的捕获,环的畸变角加宽了7°。
更新日期:2024-04-10
Polymer Engineering and Science ( IF 3.2 ) Pub Date : 2024-04-10 , DOI: 10.1002/pen.26735
Yuto Otsuki 1 , Ryoma Terui 2 , Yuji Shibasaki 3 , Atsuhiro Fujimori 1
Affiliation
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中文翻译:
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具有球晶形成能力的含氮杂杯芳烃共聚物的界面分子膜的形成和金属捕获功能