Novotney Jennifer L, Dichtel William R
Baker Laboratory, Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York, 14853-1301, United States.
ACS Macro Lett. 2013 May 21;2(5):423-426. doi: 10.1021/mz4000249. Epub 2013 Apr 30.
A conjugated porous polymer (CPP) that exhibits fluorescence quenching when exposed to TNT vapor was synthesized via a Sonaogashira cross-coupling reaction. Two polymerization solvents, DMF and PhMe, and two activation procedures, evacuation and lyophilization, were evaluated to optimize the response of the CPP to TNT vapor. Key differences in surface area and absorption were seen as a function of polymerization solvent and activation procedure. The polymer synthesized in DMF and activated by lyophilization had the highest surface area and the strongest response to TNT vapor. This paper demonstrates the importance of growth and activation conditions in optimizing the porosity and sensing performance of CPPs.
通过Sonogashira交叉偶联反应合成了一种共轭多孔聚合物（CPP），该聚合物在暴露于TNT蒸汽时会发生荧光猝灭。评估了两种聚合溶剂DMF和PhMe以及两种活化程序抽真空和冻干，以优化CPP对TNT蒸汽的响应。发现表面积和吸收的关键差异是聚合溶剂和活化程序的函数。在DMF中合成并通过冻干活化的聚合物具有最高的表面积和对TNT蒸汽最强的响应。本文证明了生长和活化条件在优化CPP的孔隙率和传感性能方面的重要性。
