The stereochemical arrangement of the units in the main chain of a polymer.
 Example sentencesExamples
-  The rate of hydrolysis depends not only on the tacticity of the polymer, but probably also on its configurational sequence statistics.
 -  Metallocene catalysts allow for control of tacticity in polyolefins, making it possible to synthesize materials with a wide range of properties from a single monomer.
 -  These critical deformation rates are themselves influenced by the tacticity of the molecule and can therefore be tailored with careful synthesis.
 -  It is found that tacticity has no influence on the molecular structure in solution, while it plays a role in the gel state.
 -  This association explains strong dependencies of the statistical segment length on tacticity and temperature in the vicinity of the melting point.