Hi, I want to design a process for opaque polymer pigment production. I ran a core&shell process with MAA MMA monomers for core production. I used SVS as surfactant and lubrizol amps 2405 as crosslinker. but heavy precipitation occured and stopped the experiment. I searched that SDBS and EGDMA are the surfactant and crosslinker for this production. what do you suggest for this process? How can I observe the core? Or do you suggest any other monomers like acrylamide?