通过合成聚尿素和聚胺来增值聚氨糖解中的异酸衍生部分
Jesus Del Amo1, Paula Bravo1, Mennatallah M Alashry1,2
1Chemical Engineering Department, University of Castilla-La Mancha, Institute of Chemical and Environmental Technology, ITQUIMA, Avda. Camilo José Cela s/n, 13004 Ciudad Real, Spain.
ACS sustainable chemistry & engineering
|December 6, 2024
概括
研究人员将聚氨泡副产品重新用于制造有价值的氨基基基聚合物. 水解和蒸产生了纯二胺和二乙烯甘醇,用于制造聚尿素,聚胺和新型聚氨泡,提高了可持续性.
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:
- 传统的聚氨柔性泡产生异酸盐衍生分离物作为副产品.
- 这种经常被丢弃的副产品是有价值的化学回收和再利用的潜在来源.
- 利用聚氨废弃物的价值与循环经济原则保持一致,并减少对环境的影响.
研究的目的:
- 开发一种方法,从聚氨泡副产品中回收和净化关键化学物质.
- 证明回收化学品在合成新聚合物和材料中的成功再利用.
- 探索聚胺的更环保的合成路径.
主要方法:
- 分相糖解的副产品被水解以产生多二胺和二乙烯糖醇.
- 使用受控真空蒸来分别回收和净化这些产品.
- 回收的二乙烯甘醇在糖解中被重复使用;回收的二胺被用于聚尿素和聚胺合成,在聚胺合成中,被烯替换为烯.
主要成果:
- 通过水解和蒸成功地产生了商业级纯度的二胺和乙烯甘醇.
- 回收的乙烯基二醇产生了分裂相产品,其特性与使用商业乙烯基二醇的产品相似.
- 合成的聚尿素和聚胺证明了回收的多二胺的成功应用,以烯基为基础的聚胺合成显示了环境效益.
结论:
- 从聚氨泡糖解中获得的异酸衍生分数可以有效地被利用.
- 回收的多二胺和二乙烯甘醇适合生产高纯度氨基基基聚合物和新的聚氨材料.
- 在聚胺合成中用烯取代烯提供了更绿色的替代方案,减少了聚合物生产的环境足迹.
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