Aqueous Catalytic Polymerization of Olefins
نویسندگان
چکیده
Aqueous catalytic polymerization may seem like a contradiction at first sight. The high water sensitivity of Ziegler or Phillips catalysts applied commercially for the production of polyolefins is well known. However, water offers a unique combination of properties as a medium for polymerization reactions: A high heat capacity, which enables an effective transfer of the heat of polymerization. A high polarity that results in a markedly different miscibility with many monomers and polymers compared to organic solvents. Surfactants can effectively stabilize dispersions of hydrophopbic polymer particles in water towards aggregation. Water is nonflammable and nontoxic. The versatile opportunities resulting can be illustrated by the following noncatalytic free-radical polymerization procedures.
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