Multistimuli, multiresponsive metallo-supramolecular polymers
Multistimuli, multiresponsive metallo-supramolecular polymers
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DOI：
10.1021/ja038521k
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发表时间：
2003-11-19
影响因子：
15
通讯作者：
Rowan, SJ
中科院分区：
文献类型：
--
作者：
Beck, JB;Rowan, SJ
金属离子诱导双位配体聚合的使用为制备有机/无机杂化材料提供了一条简便的途径。这种金属超分子聚合物潜在地提供金属离子的功能以及聚合物的可加工性。我们在此报道了凝胶状金属超分子聚合物的制备，该聚合物由附着在聚醚链两端的2,6-二（苯并咪唑基）-4-羟基吡啶单元组成，与过渡金属离子（如Co（II）或Zn(II)）和一小部分镧系金属(如La（III), Eu(III)）混合。这种材料对各种刺激，包括热、机械、化学和光，表现出戏剧性的可逆反应。响应的性质可以由所使用的过渡金属离子和镧系金属离子组合的性质来控制。
The use of metal ion-induced polymerizations of a ditopic ligand offers a facile route to the preparation of organic/inorganic hybrid materials. Such metallo-supramolecular polymers potentially offer the functionality of the metal ion along with the processibility of a polymer. We report, herein, the preparation of gellike metallo-supramolecular polymers prepared from a monomer unit, which consists of a 2,6-bis-(benzimidazolyl)-4-hydroxypyridine unit attached to either end of a polyether chain, mixed with a transition metal ion (e.g., Co(II) or Zn(II)) and a small percentage of a lanthanoid metal (e.g., La(III), Eu(III)). Such materials show dramatic reversible responses to a variety of stimuli, including thermal, mechanical, chemo, and photo. The nature of the response can be controlled by the nature of the combination of transition metal ion and lanthanide metal ion used.