A facile strategy to achieve room-temperature organic long afterglow from melt processible, new two-dimensional polyamide doped gamma-polyamide 6

Cai Peng; Zhang Hefeng; Huang Yifu

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A facile strategy to achieve room-temperature organic long afterglow from melt processible, new two-dimensional polyamide doped gamma-polyamide 6

机译：A facile strategy to achieve room-temperature organic long afterglow from melt processible, new two-dimensional polyamide doped gamma-polyamide 6

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摘要

Organic long afterglow materials can be incorporated into commercial polar polymer in very small amount to significantly reduce cost for application, while gaining excellent mechanical deformability attractively. Their luminescence can be usually enhanced, as the polar polymer can block oxygen diffusion and inhibit inclusion aggregation. However, due to thermal instability of most afterglow materials at high temperature, it is still a great challenge when they are applied for widely used polymer melt in material industry. Herein we report a new afterglow material of doped polymer system by blending a new luminescent, two-dimensional polyamide sheet (TIB-3CPBA-TAPA) with a high-temperature polyamide 6 (?PA6) melt. The excellent thermal stability of TIB-3CPBA-TAPA results from the amide bond-linked, imidazolium salted and conjugated structure. Interestingly, TIB-3CPBA-TAPA/?PA6 is found to emit greenish afterglow luminescence that can last for 4 s at room temperature, only under a loading of 0.1 wt that harvests the UV exposure efficiently. Different from converting non-afterglow ? crystal (?PA) into afterglow a crystal (aPA), our facile strategy achieves longer afterglow with a higher melting point (220 degrees C) and a tripled quantum yield (1.8). In addition, the viscoelasticity of the polymer melt is improved by TIB-3CPBA-TAPA with a mechanical toughening effect.

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来源
《Polymers for advanced technologies》 |2023年第7期|2312-2321|共10页
作者
Cai Peng; Zhang Hefeng; Huang Yifu;
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作者单位

Shantou Univ;

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原文格式 PDF
正文语种英语
中图分类高分子化合物工业（高聚物工业）;有机化学;
关键词
blend polymer; high temperature materials; luminescence; polyamide; PHOSPHORESCENCE; POLYMERS; GRAPHENE; FRAMEWORKS; STABILITY; ALPHA;

A facile strategy to achieve room-temperature organic long afterglow from melt processible, new two-dimensional polyamide doped gamma-polyamide 6

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