Emulsion-polymerized dispersions

Disponil. [Henkel/Functional Prods. Henkel KOaA Fulcra SA] Emulsifier for emulsion polymerization dispersant for paints surfactant for shampoos. 

PolywettB. [Uniroyal] Polyfiinctional oligomer salts emulsifier for emulsion polymerization dispersant for miner-... 

Chem. Descrip. Dioctyl sodium sulfosuccinate CAS 577-11-7 EINECS/ELINCS 209-4064 Uses Wetting agent and emulsifier for emulsion polymerization dispersant for coatings... 

Uses Penetrant, wetting agent for textiles emulsion breaker emulsifier for agric., emulsion polymerization dispersant, wetting agent, penetrant for paints, pigments, inks Features Antihard water chars. 

Chem. Descrip. Styrene maleic anhydride amic acid resin Uses Surfactant in emulsion polymerization dispersant for metallic pigments overprint varnishes inks... 

High oil solubility with limited water solubility, for emulsion polymerization. Dispersant for pigments, polymers in hydrocarbon and other organic solvents. 

There are many different methods for the syntheses of latexes (19a, b) all of which are based on free-radical polymerization. The various preparation can be broadly divided into the following methods, i.e. emulsion polymerization, dispersion polymerization and suspension polymerization. A more detailed treatment can be found in ref. 19a (p. 12). 

Suspension and emulsion polymerization are two classical polymerization techniques to produce spherical polymeric particles. Larger particles (usually larger than 50 tim) with an appreciable size distribution are produced by suspension polymerization. Submicron polymeric particles (usually smaller than 0.1 im) with extremely uniform in size are obtained by conventional emulsion polymerization processes. Recent techniques, such as swollen emulsion polymerization, dispersion polymerization, etc. give micron-size (usually between 1-50 im) monosize polymeric particles (23). 

Chem. Analysis 0.02% max. ash 0.8% max. moisture Uses Emulsifier, stabilizer for vinyl acetate, acrylate emulsion polymerization for syn. latex for paint, paper coatings, textiles emulsifier for emulsion polymerization dispersant for pigment and wax polishes Properties APHA 80 max. wh. solid readily sol. in water, alcohol, glycol ethers, simple esters and most aromatic solvents insol in aliphatic solvents and mineral oils. sp. gr. 1.070-1.090 cloud pt. (1% aq.) 69-74 C HLB 17.0 pH (1% aq.) 5.5-... 

Uses Emulsifier for emulsion polymerization dispersant detergent antlstat Features Achieves low surfactant Irritation Properties Liq. sol. In water ( 1%) 100% act. 

Uses Surfactant in emulsion polymerization dispersant for metallic pigments ... 

According to the solubility of the core-forming monomer in the reaction media, two different methods—emulsion polymerization and dispersion polymerization— have been exploited to obtain self-assembled nanoparticles by PISA [37, 38]. The dispersion polymerization can be carried out either in water or in organic solvents. The emulsion polymerization starts from a monomer-in-water emulsion, where a water-soluble polymer precursor is chain-extended by polymerizing a water-immiscible monomer, resulting in self-assembled block copolymers. In contrast to the emulsion polymerization, dispersion polymerization is conceptually much simpler and the initial reaction solution is homogeneous. 

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