在压力氧气和水中聚烯热氧化过程中碳酸盐形成的动力学
Vadim V Zefirov1, Polina S Kazaryan1, Andrey I Stakhanov1
1A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova St. 28, 119991 Moscow, Russia.
Polymers
|October 16, 2025
概括
本研究研究了在水辅助热氧化分解 (TOD) 过程中聚烯分解产品. 酸是主要产品,其形成动力学和机制详细说明.
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
- 化学工程是化学工程的重要组成部分.
背景情况:
- 聚烯 (PP) 是一种广泛使用的热塑性聚合物.
- 了解PP分解途径对于材料回收和降解研究至关重要.
- 热氧化分解 (TOD) 是一个关键的降解过程.
研究的目的:
- 为了全面分析聚烯的水辅助TOD产品.
- 阐明在PP分解过程中碳酸的形成机制和动力学.
- 调查水在TOD过程中的特殊作用.
主要方法:
- 聚烯的水辅助热氧化分解 (TOD).
- 气色谱-质谱 (GC-MS) 用于产品的识别和量化.
- 毛细管电泳 (CE) 用于分析碳素酸动力学.
- 标签 (H2O与D2O) 来探测水的作用.
主要成果:
- 乙酸被确定为主要的分解产物.
- 还检测到少量其他碳酸盐 (,,) 的含量.
- 碳氧酸形成的动力学被系统地研究.
- 收集关于水在TOD过程中的机械作用的证据.
结论:
- 水在聚烯的热氧化分解中起着重要作用.
- 该研究提供了有关在特定条件下控制PP降解的化学途径的详细见解.
- 这些发现有助于更好地了解聚合物降解和潜在的缓解策略.
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