Preparation of poly(styrene‐co‐butadiene) fine latex via a gemini surfactant‐induced low‐temperature initiation semibatch emulsion polymerization system

Abstract

A low‐temperature semibatch emulsion polymerization process to synthesize styrene butadiene rubber nanosized particle latex is presented. Because this polymerization system is initiated and polymerized at an ambient temperature of 25 °C, reductions in the expensive capital cost associated with the heat/cooling system during polymerization are achieved. This system shows potentially significant implications for the latex manufacturing industry.

Preparation of Poly(Butadiene–Styrene–Vinyl Pyridine)/Poly(Acrylonitrile–Butadiene) Core–Shell Nanoparticles by Intermittent Seeded Emulsion Polymerization and Their Catalytic Latex Hydrogenation

“…The VPR/NBR latex underwent hydrogenation experiments after post-treatment, including the removal of monomers [37].…”

Síntese De Surfactantes “Gemini” Catiônicos a Partir De Amidas Graxas

“…(BRICKY et al, 2017) Esses compostos, em comparação com os surfactantes ditos monoméricos, apresentam maiores atividades superficiais/interfaciais, menores valores de concentração micelar crítica (CMC), maior estabilidade térmica, solubilidade em água e salmoura, além de maior capacidade de formação de estados de agregação únicos. (HUSSEIN et al, 2019) Assim sendo, apresentam aplicações potenciais em liberação controlada de fármacos (ZHANG et al, 2020), transporte de material genético (JIM et al, 2019), síntese de partículas e nanopartículas (WANG et al, 2016, WANG et al, 2018TORRES et al, 2019), agente antimicrobiano (AZADOV et al, 2019) separação de íons metálicos (LIU et al, 2018), recuperação em exploração de petróleo (HUSSEIN et al, 2019), na fabricação de fertilizantes (HUANG et al, 2018) e como inibidor de corrosão (SHABAN et al, 2020). Dessa forma, neste trabalho, foi realizada a síntese de surfactantes do tipo "gemini" a partir de ácidos graxos, utilizando reagentes que podem ser obtidos, majoritariamente, de fontes renováveis.…”

An Environmentally Friendly Inverse Microemulsion Method to Synthesize Polyacrylamide

“…Generally speaking, there are three kinds of conventional preparation methods: conventional emulsion polymerization, microemulsion polymerization and semi-batch emulsion polymerization. The particle size of polymers prepared by conventional emulsion polymerization is generally above 100 nm, while the particle size of polymers prepared by microemulsion polymerization is generally 10–50 nm, which is much smaller than that of polymers prepared by conventional emulsion polymerization [ 29 ]. Due to the emulsion polymerization system instability, opaque, cause the turbidity and precipitate for a long time, the microemulsion polymerization system can be translucent, dynamics of metastable system, inverse microemulsion preparation of microemulsion has good dispersibility and micelle size [ 30 , 31 , 32 ] with the advantage of being easy to control.…”