将元素硫转化为高性能闭环可回收聚合物,通过启用离子混合共聚化实现质子转移
Hongjun Yang1,2, Jikai Zhang1, Wenyan Huang1
1Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Centre of Photovoltaic Science and Engineering, Changzhou University, Changzhou, 213164, Jiangsu, P. R. China.
Angewandte Chemie (International ed. in English)
|September 12, 2024
概括
元素硫 (S8) 现在可以在室温下与烯酸盐和环氧化物共聚合. 这创造了可回收的聚合物,具有出色的机械强度,抗紫外线和自我愈合特性.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 可持续化学 可持续化学
背景情况:
- 硫元素 (S8) 提出了一个全球利用挑战.
- 同聚合提供了一条将S8转化为有价值材料的途径,但受到可用的共聚物质的限制.
研究的目的:
- 报告一种用于硫元素 (S8) 的新型阳离子混合共聚化方法.
- 探索S8与烯酸盐和环氧化物单体的共聚合.
- 开发可回收的聚合物,其性能比S8.8更强.
主要方法:
- 硫元素 (S8) 与烯酸和环氧化物单体在室温下的阳离子混合共聚化.
- 研究了从烯酸盐中转移质子在使环氧化环开放和共聚化中的作用.
- 扩展了方法,包括乳和循环碳酸盐共同体.
主要成果:
- 通过质子转移实现了S8与烯酸和环氧化物的室温共聚合.
- 合成了S8与双甲二甲基乙烯和二烯酸乙烯的共聚物,具有较高的最终抗拉强度 (60.8MPa) 和Young的模量 (680MPa).
- 由此产生的聚合物具有高抗紫外线,透明度,紫外线诱导的自我愈合,再加工性和闭环可回收性.
结论:
- 开发了一种有效的战略,用于将元素硫转化为高性能,可回收的聚合物.
- 动态的硫-硫键和基组有助于材料的独特特性,包括自我修复和可回收性.
- 这种方法为硫的利用提供了可持续的解决方案,创造了先进的材料.
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