Tuning the dynamic range and sensitivity of optical oxygen-sensors by employing differently substituted polystyrene-derivatives.
Tuning the dynamic range and sensitivity of optical oxygen-sensors by employing differently substituted polystyrene-derivatives.
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DOI：
10.1016/j.snb.2012.09.057
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发表时间：
2013-01
影响因子：
8.4
通讯作者：
Klimant, Ingo
中科院分区：
文献类型：
--
作者：
Koren, Klaus;Hutter, Lukas;Enko, Barbara;Pein, Andreas;Borisov, Sergey M.;Klimant, Ingo
以铂(II)-四(4-氟苯基)四苯并卟啉为指示染料，对10种不同的聚苯乙烯衍生物作为光学氧传感器基质材料的潜在用途进行了测试。在苯环上引入卤素原子或大体积残基作为取代基。通过提供与光学氧传感器中的标准基质聚苯乙烯(PS)非常相似的化学环境，实现了传感器灵敏度的微调，而不会影响指示剂在基质中的溶解度。为了使结果更具前瞻性，我们将所研究的材料与PS在传感器的灵敏度、相对分子质量和玻璃化转变温度等方面进行了比较。在各种传感器应用领域提出的要求方面，这些材料有望成为PS的可行替代品。一些聚合物(例如聚(2，6-二氯苯乙烯))有望用于需要测量氧含量从0%到100%的应用，因为这一范围内的线性。另一方面，聚(4-叔丁基苯乙烯)和聚(2，6-氟苯乙烯)的屈服传感器具有更高的灵敏度。传感器的稳定性作为矩阵的函数进行了评估，这是一个到目前为止还没有引起太大兴趣的话题。
Ten different polystyrene-derivatives were tested with respect to their potential use as matrix materials for optical oxygen sensors in combination with the platinum(II) meso-tetra(4-fluorophenyl)tetrabenzoporphyrin as indicator dye. Either halogen atoms or bulky residues were introduced as substituents on the phenyl ring. A fine-tuning of the sensor sensitivity was achieved, without compromising solubility of the indicator in the matrix by providing a chemical environment very similar to polystyrene (PS), a standard matrix in optical oxygen sensors. To put the results into perspective, the studied materials were compared to PS regarding sensitivity of the sensor, molecular weight and glass-transition temperature. The materials promise to be viable alternatives to PS with respect to the requirements posed in various sensor application fields. Some of the polymers (e.g. poly(2,6-dichlorostyrene)) promise to be of use in applications requiring measurements from 0 to 100% oxygen due to linearity across this range. Poly(4-tert-butylstyrene) and poly(2,6-fluorostyrene), on the other hand, yield sensors with increased sensitivity. Sensor stability was evaluated as a function of the matrix, a topic which has not received a lot of interest so far.
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影响因子：
--
作者：
Wolfbeis, OS
通讯作者：
Wolfbeis, OS
影响因子：
2.3
作者：
Koren, Klaus;Borisov, Sergey M.;Saf, Robert;Klimant, Ingo
通讯作者：
Klimant, Ingo
影响因子：
8.4
作者：
Tripathi, Vijay S.;Lakshminarayana, G.;Nogami, Masayuki
通讯作者：
Nogami, Masayuki
影响因子：
7.4
作者：
Borisov, S. M.;Nuss, G.;Klimant, I.
通讯作者：
Klimant, I.
影响因子：
7.4
作者：
CARRAWAY, ER;DEMAS, JN;BACON, JR
通讯作者：
BACON, JR