Solid surfaces are synthetic surfaces manufactured from polymeric materials. Processivity is a characteristic of enzymes that function on polymeric substrates. Oxides have a range of different structures, from individual molecules to polymeric and crystalline structures. Oxides of most metals adopt polymeric structures. The preparation of pellets by extrusion-spheronization and polymeric nanoparticles has been reported. Many other acids are also used such as polymeric sulfonic acids. Particle settling is hindered by the stiffness of the polymeric matrix where particles are trapped. They decompose to form polymeric polysilicon hydride and hydrogen gas. These include barriers made of a ceramic or polymeric compound. The materials can be cyclic or polymeric. At neutral pH boric acid undergoes condensation reactions to form polymeric oxyanions. They are volatile solids with polymeric structures. Its oxidized and polymeric derivatives occur widely in nature. Rheotens is a fiber spinning rheometer, suitable for polymeric melts. DSC is used widely for examining polymeric materials to determine their thermal transitions.