Novel optical oxygen sensing material: platinum porphyrin–styrene–pentafluorostyrene copolymer film
Novel optical oxygen sensing material: platinum porphyrin–styrene–pentafluorostyrene copolymer film
复制标题
新型光学氧传感材料：铂卟啉-苯乙烯-五氟苯乙烯共聚物薄膜
DOI：
10.1039/a907024i
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
I. Okura
中科院分区：
文献类型：
--
作者：
Y. Amao;K. Asai;T. Miyashita;I. Okura
合成了一种新型含氟聚合物--聚（苯乙烯-五氟苯乙烯）[copoly（styrene/PFS）]，并将其应用于氧猝灭八乙基铂卟啉（PtOEP）磷光的光氧传感基质中。PtOEP-聚（苯乙烯-co-PFS）薄膜的磷光强度随氧浓度的增加而降低。比率I 0/I100用于描述感测膜的灵敏度，其中I 0和I100分别表示来自暴露于100%氩气和100%氧气的膜的检测到的磷光强度。PtOEP-聚（苯乙烯-共聚-PFS）膜的I 0/I100为18.0，Stern-Volmer常数比PtOEP-聚苯乙烯膜（I 0/I100=4.5）大。PtOEP-聚（苯乙烯-co-PFS）膜从氩气到氧气的响应时间为5.66 s，从氧气到氩气的响应时间为30.0 s。这一结果表明PtOEP-共聚（苯乙烯/PFS）膜是一种高灵敏度的氧传感器。
A new fluoropolymer, poly(styrene-co-pentafluorostyrene) [copoly(styrene/PFS)], is synthesized and applied to the matrix of optical oxygen sensing using phosphorescence quenching of platinum octaethylporphyrin (PtOEP) by oxygen. The phosphorescence intensity of PtOEP–poly(styrene-co-PFS) film decreased with increase of oxygen concentration. The ratio I0/I100 is used to describe the sensitivity of the sensing film, where I0 and I100 represent the detected phosphorescence intensities from a film exposed to 100% argon and 100% oxygen, respectively. The I0/I100 of PtOEP–poly(styrene-co-PFS) film is estimated to be 18.0 and a large Stern–Volmer constant is obtained compared with PtOEP–polystyrene film (I0/I100=4.5). The response times of PtOEP–poly(styrene-co-PFS) film are 5.66 s on going from argon to oxygen and 30.0 s from oxygen to argon. This result indicates that PtOEP–copoly(styrene/PFS) film is a highly sensitive device for oxygen.