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Preparation method of metalloporphyrin oxygen sensing film

A technology of porphyrin oxygen sensing film and metal, which is applied in the direction of material excitation analysis, fluorescence/phosphorescence, etc., can solve the problems of long response time, low sensitivity, easy photodegradation of phosphorescent reagents, linear fitting strength, etc., and achieve a wide measurement range , high oxygen response performance, good light stability and thermal stability

Active Publication Date: 2015-05-27
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problems of low sensitivity, long response time, easy photodegradation and low linear fitting strength of the oxygen sensing membrane prepared by the existing method after embedding the phosphorescent reagent, and provides a metalloporphyrin oxygen Preparation method of sensing film

Method used

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  • Preparation method of metalloporphyrin oxygen sensing film
  • Preparation method of metalloporphyrin oxygen sensing film
  • Preparation method of metalloporphyrin oxygen sensing film

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specific Embodiment approach 1

[0017] Specific embodiment one: the preparation method of a kind of metalloporphyrin oxygen sensing membrane of present embodiment is to carry out according to the following steps:

[0018] 1. 1. Mix methyl methacrylate and trifluoroethyl methacrylate to obtain a mixed solution; 2. Dissolve azobisisobutyronitrile with toluene to obtain an initiating solution; 3. Use a vortex shaker to mix solution and the triggering solution were mixed uniformly, heated in a water bath for 8h to 12h, cooled at room temperature, and washed with ethanol for 3 to 5 times to obtain a colorless and transparent copolymer; the methyl methacrylate and trifluoromethacrylate described in step 1 The volume ratio of ethyl ester is (0.5~4.5):1; The quality of azobisisobutyronitrile described in step one and the volume ratio of toluene are 1g:(50~200) mL; Mixed solution described in step one and The volume ratio of the triggering solution is (5-20):1;

[0019] 2. Put the colorless and transparent copolymer...

specific Embodiment approach 2

[0023] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: heating in a water bath for 10 hours in step 1. Others are the same as the first embodiment.

specific Embodiment approach 3

[0024] Specific embodiment three: this embodiment is different from specific embodiment one or two in that: the volume ratio of methyl methacrylate and trifluoroethyl methacrylate described in step one is 1:1. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a preparation method of a metalloporphyrin oxygen sensing film. According to the preparation method, the problems that after a phosphorescent reagent is embedded in an oxygen sensing film prepared by virtue of existing methods, the sensitivity is low, the response time is long, and the phosphorescent reagent is easily optically degraded and is low in linear fitting are solved. According to the preparation method, the oxygen sensing film is prepared by taking octaethyl porphilin platinum as an indicator, methyl methacrylate and trifluoroethyl methacrylate as copolymer matrixes, tributyl phosphate as a plasticizer and an azodiisobutyronitrile toluene solution as an initiator. The preparation method is used for preparing the metalloporphyrin oxygen sensing film.

Description

technical field [0001] The invention relates to a preparation method of a metalloporphyrin oxygen sensing film. Background technique [0002] Metalloporphyrin compound molecules have strong absorption in the visible region of the spectrum, good optical stability, high thermal stability, long luminescence lifetime (hundreds of nanoseconds, even tens of microseconds), high quantum Productivity and large Stokes shift, and easy to be quenched by oxygen molecules and other characteristics, can meet the requirements of short response time, high sensitivity, good stability and long service life of the sensor in practical applications. [0003] Currently commonly used carrier materials include inorganic siloxane, organic polymer materials, such as polyvinyl chloride (PVC), polystyrene (PS), polycarbonate (PC) and polymethyl methacrylate (PMMA), sol -Gel (sol-gel) and mesoporous materials, etc. Most of the existing photochemical oxygen sensors adopt the method of physical embedding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L33/12C08L33/14C08K5/3417C08K5/521C08F220/14C08F220/22G01N21/64
Inventor 张科赵九蓬张鸿林李垚
Owner HARBIN INST OF TECH
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