在环境温度下从S8所涉及的阶段增长添加聚合物中合成聚二硫化
Yue Sun1,2,3, Yuxiang Cao1,2, Xiong Liu1,2
1State Key Laboratory of Biobased Transportation Fuel Technology, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, China.
Nature communications
|January 27, 2026
概括
元素硫 (S8) 是一种通用的单体,用于制造像聚二硫化这样的功能性聚合物.这种有机基催化方法为各种应用提供了可调节性质的先进材料的可扩展合成.
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
- 有机合成 有机合成
背景情况:
- 元素硫 (S8) 是一个丰富的,低成本的石油副产品.
- 传统的硫聚合方法往往需要恶劣的条件,并且具有有限的单体范围.
- 开发可持续的通往功能性聚合物的途径对于先进材料应用至关重要.
研究的目的:
- 建立一个易于和可扩展的有机基催化聚合元素硫 (S8) 与二醇和二烯酸盐.
- 为了合成新型的聚二硫化,用交替的和二硫化链接.
- 研究这些新型聚合物的特性和潜在应用.
主要方法:
- 在环境温度下进行有机基催化阶段增长添加聚合.
- 使用元素硫 (S8) 作为与迪和二烯酸盐一起的单体.
- 聚合物属性的表征,包括分子量,热稳定性,相位行为和降解.
主要成果:
- 具有高原子经济性 (>95%的产量) 和高达42.0kDa的分子量的聚二硫化的可扩展合成.
- 聚合物具有双重功能,具有可生物降解的单元和对刺激有反应的二硫化物链接.
- 机理学研究显示出一种化学选择性三组件合机制.
- 实现了高热稳定性 (Td,5% = 248-281 °C) 和可调节的相位行为 (Tg = -64 °C到Tm = 142 °C).
结论:
- 元素硫 (S8) 是一种多功能原料,可通过温和高效的聚合法合成功能性聚合物.
- 开发的聚二硫化具有可编程的特性,在生物医学和环境修复方面具有潜力.
- 这一策略克服了传统硫聚合物的局限性,为动态材料开辟了新的途径.
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