Waterborne coatings with an emphasis on synthetic aspects: An overview
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This chapter provides an overview of water-borne coatings to complement the chapters that follow. It provides the basic chemical reactions that many outside the field will not be familiar with, and general principles that those practicing in the field may have forgotten. The most active areas in water-borne coatings are in the synthesis of latices and water-reducible acrylics by a chain-growth polymerization mechanism and water-borne polyurethane, polyester, and epoxy resins synthesized by step-growth polymerizations. Water-borne epoxy resins are discussed in detail in chapter 5. The other resin families are discussed in this and in the chapter to follow. The emphasis in this chapter will address the synthetic aspects as imposed by the polymerization process on the stability of the disperse phases and their film properties.