Oxygen sensors based on luminescence quenching: Interactions of tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) chloride and pyrene with polymer supports
Oxygen sensors based on luminescence quenching: Interactions of tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) chloride and pyrene with polymer supports
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DOI：
10.1366/0003702971942024
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发表时间：
1997-09-01
影响因子：
3.5
通讯作者：
DeGraff, BA
中科院分区：
文献类型：
--
作者：
Kneas, KA;Xu, WY;DeGraff, BA
研究了[Ru(Ph(2)phen)(3)]Cl-2 （Ph(2)phen = 4,7-二苯基-1,10-菲罗啉）和芘在Gp-163（甲基丙烯氧基功能化聚二甲基硅氧烷）与苯乙烯、三甲基硅氧基-甲基丙烯酸甲酯（T3642）、乙烯基-三（2-甲氧基-乙氧基）硅烷或乙烯基-三（三甲基硅氧基）硅烷共聚合的一系列聚合物网络中的氧猝灭作用。研究了传感器性能作为聚合物组成的函数，以描述令人满意的O-2传感器支撑的重要特征。研究了聚合物结构（包括共单体的数量和类型）对猝灭行为的影响。[Ru(Ph(2)phen)(3)]Cl-2和芘的不同结构域的相对亲和力以及结构域对O-2的猝灭效果是重要的；然而，结构域内微观结构的细微变化也会强烈影响行为。特别是，T3642在[Ru(Ph(2)phen)(3)]Cl-2中表现出优异的结构和良好的淬火性能。
Oxygen quenching of [Ru(Ph(2)phen)(3)]Cl-2 (Ph(2)phen = 4,7-diphenyl-1,10-phenanthroline) and pyrene has been studied in a series of polymer networks of Gp-163 (a methacryloxy functional polydimethylsiloxane) co-polymerized with one of several co-monomers: styrene, trimethylsilyl-methylmethacrylate (T3642), vinyl-tris(2-methoxy-ethoxy)silane, or vinyl-tris(trimethylsiloxy)silane. Sensor performance was studied as a function of the polymer composition in order to delineate the important features for satisfactory O-2 sensor supports. Quenching behavior was examined as a function of polymer structure, including amount and type of co-monomer. This work shows that the earlier two-domain model is too simplistic The relative affinities of the different domains for the [Ru(Ph(2)phen)(3)]Cl-2 and pyrene and the efficacy of the domains for O-2 quenching are important; however, subtle changes in microstructure within domains can also strongly affect behavior. In particular, T3642 exhibits excellent structural and goad quenching properties with[Ru(Ph(2)phen)(3)]Cl-2.