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Ferrocene‐Based Hyperbranched Polytriazoles: Synthesis by Click Polymerization and Application as Precursors to Nanostructured Magnetoceramics
Macromolecular Rapid Communications ( IF 4.6 ) Pub Date : 2017-07-25 , DOI: 10.1002/marc.201700075
Hongkun Li 1 , Weiwen Chi 1 , Yajing Liu 2 , Wei Yuan 1 , Yaowen Li 1 , Yongfang Li 1 , Ben Zhong Tang 2
Affiliation  

Ferrocene‐based polymers have drawn much attention in the past decades due to their unique properties and promising applications. However, the synthesis of hyperbranched polymers is still a great challenge. Here, two ferrocene‐based hyperbranched polytriazoles with high molecular weights are facilely prepared by the click polymerization reactions of ferrocene‐containing diazides (1) and tris(4‐ethynylphenyl)amine (2) using Cu(PPh3)3Br as catalyst in dimethylformamide at 60 °C for 5 and 9 h in satisfactory yields of 54.0% and 52.3%. The resulting polytriazoles are soluble in common organic solvents and thermally stable, with 5% weight loss temperatures up to 307 °C. They can be used as precursors to produce nanostructured ceramics with good magnetizability by pyrolysis at elevated temperature.
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中文翻译:

二茂铁基超支化聚三唑:点击聚合法合成及其作为前体在纳米结构磁陶瓷中的应用

在过去的几十年中,基于二茂铁的聚合物因其独特的性能和广阔的应用前景而备受关注。然而,超支化聚合物的合成仍然是巨大的挑战。在此,通过含二茂铁的叠氮化物(1)和三(4-乙炔基苯基)胺(2)的Cu(PPh 33的点击聚合反应,可以轻松制备两种高分子量的二茂铁基超支化聚三唑。Br在二甲基甲酰胺中的催化剂在60°C下反应5和9 h,收率令人满意,分别为54.0%和52.3%。所得的聚三唑可溶于常见的有机溶剂中,并且具有5%的失重温度(最高307°C)具有热稳定性。它们可以用作前体,通过高温热解生产具有良好磁化性的纳米结构陶瓷。
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更新日期:2017-07-25
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