Polyurethanes, Miscellaneous Organic Polymers, and Silicones

Abstract

The toxicity of the polymers discussed in this chapter may be attributed generally to the residual monomers, catalysts, and other additives present rather than the polymer per se . The cured polymer itself may be of high molecular weight and, consequently, more or less toxicologically inert. Carefully manufactured, highly refined polymers contain few residual toxic chemicals. However, some of the polymers discussed in this chapter, at least in some applications, go through an intermediate stage consisting of “prepolymers” (sometimes referred to as oligomers or resins) that react further to achieve their final, cured form. These may have high levels of monomers or additives that could present an exposure hazard to workers.