In terms of adsorbed and desorbed process of the analytes from the polymer (application purpose)
Hello dear, I am agree with Hossein, in process of absorption-desorption is very important superficial area. Therefore, the best method is precipitation polymerization
Thank you hossein & edwin. Yes Ali, I had prepared the molecularly imprinted adsorbent.
If so, I would say the precipitation polymerization is favorable in case you consider the followings:
- the temple might have an affinity toward the functional monomer(s) to result in a complex. Otherwise, if you use precipitation polymerization, the template will remain in the solvent, in other words, the monomers will consolidate without the template!
- The polymerization system should be design in a way that the template exhibit more bias to locate at the developing solvent-polymer interface during the polymerization. In this case, the specific cavities will evolve on the exterior surface of the particles.
- Precipitation polymerization usually leads to submicron size particles. So, if you are going to test/use the product in a HPLC column, you should think about the high back pressure!
- For the precipitation polymerization you need to use a theta solvent ((or θ solvent), a solvent leads to precipitation of the formed particles.
- The solvent should possess less dielectric constant (e.g. Acetonitrile), not to interfere in the formation of the complex between the functional monomers and the template.
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