使用均催化剂的 styrene 和 butadiene 基 (共) 聚合物的后聚合氧化功能化
Maartje Otten1, Jeroen Hendriks1, Nino Kalános1
1Organic Chemistry & Catalysis, Institute for Sustainable and Circular Chemistry, Faculty of Science, Utrecht University, Universiteitsweg 99, 3584 CG, Utrecht, The Netherlands. a.a.thevenon-kozub@uu.nl.
Faraday discussions
|September 17, 2025
概括
这项研究引入了用于聚合物修饰的催化剂,从聚烯和聚乙烯等常见塑料中制造出功能性聚合物. 这种多功能方法允许控制功能化和潜在的聚合物降解为有价值的寡合物.
科学领域:
- 聚合物化学 聚合物化学
- 催化剂是一种催化剂.
- 材料科学 材料科学 材料科学
背景情况:
- 聚合后修饰提供了通过直接合成无法实现的功能性聚合物的途径.
- 商品碳化合物聚合物如聚乙烯和聚乙烯缺乏固有的功能,限制了它们的应用.
- 开发高效,绿色的聚合物功能化的方法对于先进的材料开发至关重要.
研究的目的:
- 通过使用基于的催化剂来证明 styrenic 和性聚合物的氧功能化.
- 探索催化系统的多功能性,用于修改各种聚合物类型和C-H/C=C键.
- 研究在功能化后控制的聚合物降解到二甲寡合物的潜力.
主要方法:
- 使用同质催化剂 (MnTACN) 与过氧化作为绿色氧化剂.
- 将催化剂应用于各种等级的聚乙烯 (PS) 和聚乙烯 (PBD) 同聚合物,以及乙烯-乙烯-乙烯 (SBS) 块共聚物.
- 使用诸如凝透色谱 (GPC) 等技术来表征功能化聚合物,并分析热性质.
主要成果:
- 在PS和PBD聚合物骨干上成功引入了酒精,和环氧功能组.
- 达到高功能化程度:PS高达5%,PBD高达18%,SBS中的丁成分高达11%.
- 证明了随机功能组分布和控制的脊柱分裂成二甲寡合物的潜力.
结论:
- MnTACN催化剂系统对于氧功能化各种碳化合物聚合物非常通用.
- 氧功能化可以与受控的降解相结合,产生有价值的寡合物产品.
- 功能化聚合物在很大程度上表现出不变的热特性,PBD和低/中Mw PS.的脊柱变化最小.
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