氧化的碳化合物离子表面活性剂表现出二氧化碳溶解度
Xin Fan1, Vijay K Potluri, M Chandler McLeod
1Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA.
Journal of the American Chemical Society
|August 18, 2005
概括
具有乙乙酸尾的新离子表面活性剂显示出高二氧化碳溶解度,与化表面活性剂相竞争. 这些表面活性剂在二氧化碳中创造极性环境,使得极性分子 (如甲基) 的溶解成为可能.
科学领域:
- 超分子化学 超分子化学
- 绿色化学 绿色化学
背景情况:
- 开发可溶于二氧化碳的表面活性剂对于可持续的化学过程至关重要.
- 化表面活性剂具有较高的二氧化碳可溶性,但也引起了环境问题.
研究的目的:
- 合成和评估新的基于氧化碳化合物的离子表面活性剂,以测量二氧化碳的溶解性.
- 研究这些表面活性剂在二氧化碳中形成反向菌体的能力.
主要方法:
- 离子表面活性剂与乙糖,聚乙烯甘醇和乙烯酸乙烯尾巴的合成.
- 在不同压力和温度下测量表面活性剂的二氧化碳溶解度.
- 光谱分析 (UV-Vis) 用于探测CO2丰富的溶液中的微环境.
主要成果:
- 基于乙乙烯的表面活性剂显示出显著的二氧化碳可溶性,与化对应物相美.
- 一种具有寡合乙酸尾的硫酸在二氧化碳中显示了7%的重量%的可溶性.
- 这些表面活性剂成功地在二氧化碳中形成了反向微粒,由甲基色溶解和类似甲醇的极性微环境表明.
结论:
- 奥利戈 (?? 乙酸乙烯) 表面活性剂在二氧化碳的应用中具有最佳的水友性-脂友性平衡.
- 这些非化表面活性剂是基于二氧化碳的溶剂系统和绿色化学倡议的有希望的替代品.
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