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设计和制备新型光聚化物,其中含有与ortho结合的单元和pyridine部分

Mingfu Huang¹, Li Wang¹, Xiaolong Li¹

¹Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, China.

Designed monomers and polymers

|May 30, 2024

概括

合成了一种含有胺的新型芳香胺单体,并用于制造新的聚胺 (PI). 这些PI显示出出色的热稳定性,高溶解性和光性质,使它们适用于先进的材料应用.

科学领域:

聚合物化学聚合物化学
有机合成有机合成
材料科学材料科学材料科学

背景情况:

新型单体的开发对于设计先进的聚合物至关重要.
含胺的聚合物具有独特的电子和光学特性.
芳香聚胺 (PI) 以其热稳定性和机械强度而闻名.

研究的目的:

为了合成一种新型的胺含有胺的芳香胺单体,4-[4-氧]-2,6-bis[4-[2-aminophenoxy) phenyl]胺 (p,o-HAPP).
使用合成的单体制备一系列含胺的聚胺 (PI).
描述由此产生的聚胺的特性,包括溶解性,热稳定性和光学行为.

主要方法:

通过修改的奇奇巴宾反应合成p,o-HAPP,然后进行减少.
用两步方法将p,o-HAPP与各种芳香二化物聚凝在N,N-二甲基形式胺 (DMF) 中.
聚胺酸和PI的表征,包括固有的粘度测量.
在常见有机溶剂中的可溶性评估.
使用热重量计分析进行热分析 (玻璃过渡温度,T_g和10%的减肥温度).
紫外线吸收和光谱学.

主要成果:

成功合成了新型含胺的二胺单体p,o-HAPP.
制备具有0.52-0.64dL/g的固有粘度的可溶性和灵活的含胺PI薄膜.
高热稳定性,T_g范围在259.8-323.4°C之间,10%的减肥温度在485.5-576.4°C之间.
在各种有机溶剂 (m-Cresol,DMF,DMSO,NMP,THF,chloroform) 中具有很好的溶解性.
质子聚合物表现出紫外线吸收 (200-400 nm) 和强光 (470 nm).

结论:

这种新型的含胺的胺单体是有效合成的,可以用来制造高性能聚胺.
由此产生的聚胺具有可取的高溶性,优异的热稳定性和光性质的理想组合.
这些新型聚胺具有应用在需要耐热性和光学活性的先进材料中的潜力.

关键词:

设计设计设计设计光是一种光.聚化物是一种聚化物.含有皮里丁的二胺.溶解度溶解度溶解度溶解度

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