来自二olefinic单体的有机热石
Ozge Guney-Altay1, Dmitry Pestov, Gary Tepper
1Department of Mechanical Engineering, Virginia Commonwealth University, Richmond, Virginia 23284-3015, USA.
Journal of the American Chemical Society
|October 24, 2007
概括
使用光聚合和模板分子创建了具有可调的吸附性质的亚微米二甲基p-phenylenediacrylate (EPA) 颗粒. 这些印制聚合物表现出选择性基吸附,充当有机烯酸类似物.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 分析化学 分析化学
背景情况:
- 具有可调节吸附的亚微米粒子对于选择性化学传感至关重要.
- 甲基p-phenylenediacrylate (EPA) 提供了创造这种功能性材料的潜力.
- 分子印记技术允许量身定制的分子识别特性.
研究的目的:
- 开发具有可控制分子吸附特性的亚微米EPA颗粒.
- 为了研究这些粒子的蒸汽吸附行为,使用基作为分析剂.
- 评价这些印制聚合物的潜力,作为有机模拟的化物选择性吸附.
主要方法:
- 通过超临界溶液 (RESS) 的快速膨胀产生EPA单体颗粒.
- 在直接在表面声波 (SAW) 共振器上存在分子模板时,EPA颗粒的固态光聚合.
- 在现场测量C1-C9基的动态吸附异温,通过监测SAW设备的频率变化.
- 印制聚合物涂层的蒸汽选择性和分子多孔性的表征.
主要成果:
- 成功合成了具有可调节吸附特性的微米级EPA颗粒.
- 动态吸附异热法揭示了基蒸汽的选择性吸附.
- 观察到模板分子大小与较小的烯分子排除之间的相关性.
- 印制的聚合物涂层证明了基分析物的可逆吸附.
结论:
- 开发的光聚合EPA粒子表现出分子印记能力.
- 这些材料显示了基的选择性和可逆吸附,类似于化物.
- 可调节的性质和类似热带石的行为表明,在化学传感和分离技术中具有潜在的应用.
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