A metal–organic gel based on Fe(iii) and bi-pyridine ligand for template synthesis of core/shell composite polymer nanowires†,Soft Matter

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A metal–organic gel based on Fe(iii) and bi-pyridine ligand for template synthesis of core/shell composite polymer nanowires†
Soft Matter ( IF 2.9 ) Pub Date : 2018-10-17 00:00:00 , DOI: 10.1039/c8sm01755g
Botian Li _{1,

2,

3,

4} , Da Xiao _{1,

2,

3,

4} , Dongsheng Deng _{1,

2,

3,

4} , Haimu Ye _{1,

2,

3,

4} , Qiong Zhou _{1,

2,

3,

4} , Liming Tang _{3,

4,

5,

6,

7}

Affiliation

In this study, a novel self-assembled metal–organic gel was synthesized from ferric nitrate and a di-topic ligand, bis(3-pyridyl)terephthalate. The gel consisted of a three dimensional network of uniform nanofibers. The gelation exhibited high selectivity to Fe(III) based on metal–ligand coordination. The molar ratio of Fe³⁺ to ligand had a large influence on the assembly process and the morphology of the gel. The metallogel displayed multi-stimuli responsiveness and excellent heat resistance, thus was further applied as a thermo-stable template for the polymerization of N,N′-methylene bisacrylamide to produce the core/shell polymer composite nanowires. Subsequently, the polymer nanotubes were obtained after ammonia post-treatment, comfirming the feasibility of the template synthesis strategy. According to the rheological measurements, the gel-like products of the composite nanowires exhibited better mechanical strength compared to the gel template.

中文翻译：

基于Fe（iii）和联吡啶配体的金属有机凝胶，用于模板合成核/壳复合聚合物纳米线†

在这项研究中，由硝酸铁和双位配体双（3-吡啶基）对苯二甲酸酯合成了一种新型的自组装金属有机凝胶。该凝胶由均匀纳米纤维的三维网络组成。基于金属-配体的配位，胶凝显示出对Fe（III）的高选择性。Fe ³⁺与配体的摩尔比对凝胶的组装过程和形态有很大影响。Metallogel显示出多种刺激反应性和优异的耐热性，因此进一步被用作N，N聚合反应的热稳定模板。'-亚甲基双丙烯酰胺以生产核/壳聚合物复合纳米线。随后，在氨气后处理后获得了聚合物纳米管，证实了模板合成策略的可行性。根据流变学测量，与凝胶模板相比，复合纳米线的凝胶状产物表现出更好的机械强度。

更新日期：2018-10-17

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