TY - JOUR ID - 1666 TI - Competitive particle growth at different conditions of oligo-micelle formation in hydro-alcoholic solution of anionic double-chain emulsifier via batch emulsion polymerization of vinyl chloride JO - Polyolefins Journal JA - POJ LA - en SN - 2322-2212 AU - Mahdavi Akerdi, Aliasghar AU - Nekoomanesh, Mehdi AD - Department of Research and Technology, Arvand Petrochemical Company (APC), Mahshahr, 6356178734, Iran AD - Department of Polymerization Engineering, Iran Polymer and Petrochemical Institute (IPPI), Tehran, 1497713115, Iran Y1 - 2019 PY - 2019 VL - 7 IS - 1 SP - 33 EP - 44 KW - emulsion polymerization KW - Poly (vinyl chloride) KW - Double-chain emulsifier KW - oligo- micelle KW - Particle Growth DO - 10.22063/poj.2019.2501.1138 N2 - The condition of oligo-micelle formation of sodium di-isodecyl sulfosuccinate (SDIDS) emulsifier in hydroalcoholic solutions is used to study particle formation of vinyl chloride emulsion polymerization in a batch reactor. The change on micellization behavior was investigated by critical micelle concentration (CMC) and zeta potential parameters. To detect the occurrence of secondary nucleation or particle aggregation, or both the particle size and number of particles were investigated as a criterion for the particle nucleation and growth process. The results showed that the alcohol (co-solvent) content had a strong effect on the oligo-micelles formation and emulsion polymerization performance. Namely, decreasing the alcohol content and increasing the anion content in the SDIDS samples increased the overall reaction rate and latex stability. This also decreased the chain growth rate, the particle size, and the coarse particle formation. Also, the results showed that different condition of oligo-micelle formation would lead to different particle growth history UR - http://poj.ippi.ac.ir/article_1666.html L1 - http://poj.ippi.ac.ir/article_1666_9cd52a226f55133556ce4dae7d62a3a9.pdf ER -