Despite the common miniemulsion polymerization process, is there any other convenient method for the synthesis of negatively charged polystyrene microspheres?
Thanks in advance.
There are many ways to do what you want. The simplest one is to conduct emulsion polymerization using an anionic surfactant as steric stabilizer, SLS is typical. Another way is to copolymerize styrene with an anionic reactive surfactant; in this way you can vary the anionic strength of the latex particles. Various other ways include the copolymerization of S with methacrylic, acrylic, acid, AMPS, or any other polymerizable acid functional monomer. By conducting metered polymerization you can tune the level of anionic charge on the surface of the latex particles. I suggest you search the patent literature as well as scientific journals.
Dear all,
The simplest way is to polymerize carboxylic and/or sulfonic acids substituted styrene or to modify already polymerized polystyrene by intruducing acid groups. Regards
Dear Abdelkader Bouaziz,
Thank you sir for your response.
Sir, can you please tell me, if I want to modify already polymerized polystyrene microspheres with carboxylate, what should be the proper procedure to do that? Actually, I searched literature but still not clear about the exact procedure.
Thanks in advance.
Regards
Rana
Dear Mohosin,
this is a common practice in ion exchange préparation. Generally, and as an exemple, first a chloromethylation at the para-positon followed by carboxylation. Sonner, I'll try to provide you with some references. Regards
Dear Sir
Thank you very much for your information. I am really grateful to you for your help.
Regards
Rana
Dear all,
here you find examples of documents on this tonic. Regards
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