Celopro for Polymerization
Emulsion Polymerisation
Emulsion polymerisation is widely used for ethylene derived unsaturated compounds used to produce aqueous polymer emulsions. The resulting polymers are polyacrylates or polyvinyl acetates combined with a large number of different co-monomers. The additional use of an emulsifier and a water-soluble initiator lead to polymer particles with a diameter between 0.05 and 5 µm.
Celopro® grades with a low viscosity level are recommended.
Suspension polymerisation (EPS)
Suspension polymerisation of styrene monomer leads to one of the most important polymers - polystyrene. In its gas-impregnated form, expandable polystyrene (EPS), is widely used as insulation material in the construction industry and as packaging material. In the polymerisation process Celopro® acts as protective colloid, adjusting the particle size distribution of the resulting polymer particles, prohibiting coalescence. The diameter of the resulting polymer particles is about 10 to 1000 μm.
Celopro® grades with a low viscosity level are recommended.
Suspension polymerisation (PVC)
Celopro cellulose ethers have been used as suspending agents for vinyl chloride polymerization. These products are protective colloids made of linear polymers of condensed anhydroglucose rings that form a carbohydrate skeleton. Methyl and hydroxypropyl groups are attached to the carbohydrate skeleton via an ether linkage. Celopro cellulose ethers are nonionic, surface-active film formers. When used as suspending agents in vinyl chloride polymerization, they provide particle size control, uniform particle size distribution, and porosity that can be optimized for many PVC end-uses. This publication discusses the use of Celopro cellulose ethers as suspending agents for vinyl chloride polymerization.
Celopro® grades with a low viscosity level are recommended.
Products for suspension
