Method for detecting spatial distribution of nano particles in photopolymer by using Raman imaging technology
A technology of photopolymers and nanoparticles, applied in Raman scattering, material analysis through optical means, measurement devices, etc., can solve problems such as limitations, lack, and insufficient understanding of photophysical and photochemical mechanisms, and achieve enhanced stability Sexuality, good holographic dynamics effect
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Embodiment 1
[0035] A method for detecting the spatial distribution of nanoparticles in photopolymers using Raman imaging technology, the steps are as follows:
[0036] (1) Au-MBA-SiO 2 Preparation of nanoparticles:
[0037] Take 240 ul of p-mercaptobenzoic acid solution with a concentration of 20mM and add it to 30ml of fresh gold colloid solution with an average particle size of about 15±3nm, stir until evenly mixed, and keep warm at 60°C for 12 hours to complete the p-mercaptobenzoic acid solution on the surface of gold nanoparticles. Molecular adsorption process. Then, the solution was placed in a round bottom flask, 0.4 ml of 1 mmol / L 3-aminopropyltrimethoxysilane aqueous solution was added and stirred for 10 min. Add 3.0 ml of 0.54% sodium silicate aqueous solution and continue stirring for 5 min. Then the reaction solution was placed in a water bath at 90 degrees to heat the reaction for 1 h, and then the reaction was terminated and cooled to room temperature to prepare Au-MBA-Si...
Embodiment 2
[0049] A method for detecting the spatial distribution of nanoparticles in photopolymers using Raman imaging technology, the steps are as follows:
[0050] (1) Au-MBA-SiO 2 Preparation of nanoparticles:
[0051] Take 240 ul of p-mercaptobenzoic acid solution with a concentration of 25mM and add it to 30ml of fresh gold colloid solution with an average particle size of about 20±3nm, stir until evenly mixed, and keep warm at 65°C for 18 hours to complete the p-mercaptobenzoic acid solution on the surface of gold nanoparticles. Molecular adsorption process. Then, the solution was placed in a round bottom flask, 0.6ml of 1.5mmol / L 3-aminopropyltrimethoxysilane aqueous solution was added and stirred for 15 min. Add 3.5 ml of 0.45% sodium silicate aqueous solution and continue stirring for 10 min. Then the reaction solution was placed in a water bath at 95 degrees to heat the reaction for 1.5h, and then the reaction was terminated and cooled to room temperature to obtain Au-MBA-S...
Embodiment 3
[0063] A method for detecting the spatial distribution of nanoparticles in photopolymers using Raman imaging technology, the steps are as follows:
[0064] (1) Au-MBA-SiO 2 Preparation of nanoparticles:
[0065] Take 300 ul of p-mercaptobenzoic acid solution with a concentration of 23mM and add it to 30ml of fresh gold colloid solution with an average particle size of about 20±3nm, stir until evenly mixed, and keep warm at 70°C for 16 hours to complete the p-mercaptobenzoic acid solution on the surface of gold nanoparticles. Molecular adsorption process. Then, the solution was placed in a round bottom flask, 0.6ml of 3mmol / L 3-aminopropyltrimethoxysilane aqueous solution was added and stirred for 15 min. Add 3.2 ml of 0.38% sodium silicate aqueous solution and continue stirring for 10 min. Then the reaction solution was placed in a water bath at 95 degrees to heat the reaction for 2h, and then the reaction was terminated and cooled to room temperature to prepare Au-MBA-SiO ...
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