聚甲基二氧化碳胺含硫基基的合成和气体透性
Alejandro Onchi1, Lisandra Rubio-Rangel1, Arlette A Santiago2
1Instituto de Investigaciones en Materiales, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex Hacienda de San José de la Huerta, Morelia C.P. 58190, Michoacán, Mexico.
Polymers
|January 10, 2026
概括
新型含硫烯的聚合物通过环开通转化聚合 (ROMP) 合成. 这些聚合物在膜中表现出增强的气体选择性,其中一种聚合物在H2/C3H6分离方面表现出了卓越的性能.
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
- 分离技术 分离技术
背景情况:
- 开发用于气体分离的先进聚合物膜对于工业过程至关重要.
- 诺伯二氧化物聚合物为膜应用提供可调节的特性.
研究的目的:
- 通过环开拓转化聚合 (ROMP) 合成含有硫的新型norbornene dicarboximide单体和聚合物.
- 为了研究这些聚合物制成的膜的气体运输特性.
- 为了比较含硫烯酸的聚合物与非硫烯酸类似物的性能.
主要方法:
- 合成含有硫的诺伯二氧化物单体.
- 使用格鲁布斯第二代催化剂进行环开放转化聚合 (ROMP).
- 综合性聚合物表征 (NMR,FT-IR,TMA,TGA,AFM,XRD). 这是一个非常简单的方法.
- 使用已制备的膜进行气体运输研究 (H2,O2,N2,CO2,CH4,C2H4,C3H6).
主要成果:
- 成功合成和ROMP的两个新的含硫的norbornene二氧化物单体.
- 聚合物表现出增加的气体选择性,由于硫烯悬挂组,透性略有下降.
- 一种含有硫的特定聚合物 (2b) 显示出对H2/C3H6分离的高选择性.
结论:
- 聚合物骨干中的硫基增强了聚乙烯二氧化物膜中的气体选择性.
- 开发的聚合物显示出高效的气体分离应用的潜力,特别是H2/C3H6混合物.
- 在聚合物结构中加入氧异原子进一步优化了分离性能.
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