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Article | REF: AM3340 V1

Polystyrene and styrene copolymers

Authors: Philippe HEIM, Olivier de LINARÈS, Laure HYM

Publication date: July 10, 2002

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4. Properties

The general properties of the various styrenic polymers are listed in table 3 (see the section on Standardized testing of plastics in this treatise).

4.1 Mechanical properties

  • Tensile and flexural properties

  • Figure 3 shows the tensile stress-strain curves for a standard PS, an impact PS and an SB copolymer. Standard PS behaves like a very rigid but brittle polymer; the other two have a yield point. Tensile stress measurements are carried out in accordance with NF T 51-034 or ISO R 527 standards (see...

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