Organic Materials Department, Sandia National Laboratories, Albuquerque, NM 87185, USA.
Macromol Rapid Commun. 2012 Aug 28;33(16):1346-50. doi: 10.1002/marc.201200325. Epub 2012 Jul 18.
The synthesis of two new polyphenylene vinylene (PPV) precursor polymers which can be thermally induced to eliminate pentanol is presented. Pentanol has recently been discovered to be a very useful lubricant in MicroElectroMechanical Systems. The utilization of the elimination reaction of precursor polymers to PPV as a small molecule delivery platform has, to the best of our knowledge, not been previously reported. The elimination reactions were examined using thermal gravimetric analysis, gas chromatography, and UV-Vis spectroscopy. Using PPV precursors allows for (1) a high loading of lubricant (one molecule per monomeric unit), (2) a platform that requires relatively high temperatures (>145 °C) to eliminate the lubricant, and (3) a non-volatile, mechanically and chemically stable by-product of the elimination reaction (PPV).
介绍了两种新的聚对苯乙炔（PPV）前体聚合物的合成方法，这两种聚合物可以通过热诱导去除戊醇。最近发现戊醇在微机电系统（MicroElectroMechanical Systems）中是一种非常有用的润滑剂。据我们所知，利用前体聚合物到 PPV 的消除反应作为小分子输送平台尚未有报道。使用热重分析、气相色谱和紫外可见光谱法研究了消除反应。使用 PPV 前体可以实现：（1）高负载润滑剂（每个单体单元一个分子）；（2）需要相对较高温度（>145°C）来去除润滑剂的平台；以及（3）消除反应的非挥发性、机械和化学稳定的副产物（PPV）。
