为提高水性泡稳定性量身定制两聚合物
Loren C Brown1,2, Katherine M Hinnant1, Grant C Daniels1
1Chemistry Division, United States Naval Research Laboratory, Washington, D.C. 20375, United States.
Langmuir : the ACS journal of surfaces and colloids
|June 14, 2023
概括
在这项研究中,使用聚乙烯糖醇 (PEG) 和丁烯酸盐合成了两性共聚合物. PEG的分子量和终端组显著影响了泡的稳定性,特定的共聚物在不同的条件下表现出增强的性能.
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
- 表面科学是一门学科.
背景情况:
- 两性共聚合物对于各种应用至关重要,包括稳定和自组装.
- 通过单体选择和合成控制聚合物特性是定制性能的关键.
- 基于聚乙烯甘醇 (PEG) 的共聚合物由于其多功能性而具有可调性特性.
研究的目的:
- 为了合成和描述基于PEG和丁烯酸的新型两性共聚物.
- 研究PEG分子量 (MW) 和终端端组对共聚合物特性的影响.
- 评估这些合成共聚合物的泡稳定能力.
主要方法:
- 可逆添加碎片链转移 (RAFT) 聚合被用于共聚合物合成.
- 制备了一系列聚乙烯糖醇单甲酸盐 (PEGMA) 和聚乙烯糖醇单甲乙醇单甲酸盐 (PEGMMA) 共聚合物.
- 描述包括GPC,NMR,FTIR-ATR,表面张力,CMC,DLS和使用动态泡分析仪进行泡分析.
主要成果:
- 合成的PEG功能化共聚合物表现出表面张力,CMC,CP和泡寿命的系统趋势.
- PEGMA系列通常产生更稳定的泡,而PEGMA200显示的泡高度变化最小.
- PEGMMA1000在高温下表现出优异的泡寿命,这表明其性能取决于温度.
结论:
- PEG单体的分子量和终端末组是共聚物性质的关键决定因素.
- 这些共聚物表现出可调节的自我组装和表面活性,使它们适合泡稳定.
- 这些发现强调了精确的聚合物设计对于优化特定应用中的性能的重要性.
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