Kautschuk Gummi Kunststoffe, Vol.51, No.6, 439-443, 1998
A new transparent thermoplastic polymer with elastomeric properties
Styroflex is a novel styrenic polymer, featuring properties like high transparency, good processability and recovery (memory effect). Elastomerlike properties result from a linear hard-soft-hard structure, made of styrene, statistical styrene/butadiene and styrene block sequences. The order/disorder transition temperature (ODT) is as low as 145 degrees C. Thus, Styroflex behaves almost as an ideal Newtonian liquid under typical processing temperatures like 170-200 degrees C. The time-dependent stress/strain curves are similar to plasticized PVC and conventional SBS rubbers. Styroflex is well miscible with other styrenic polymers, allowing custom-tailored properties.