N. Niessner et K. Knoll, A NEW TRANSPARENT THERMOPLASTIC POLYMER W ITH ELASTOMERIC PROPERTIES, Kautschuk und Gummi, Kunststoffe, 51(6), 1998, pp. 439-443
Styroflex is a novel styrenic polymer, featuring properties like high
transparency, good processability and recovery (memory effect). Elasto
merlike 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 deg
rees C. Thus, Styroflex behaves almost as an ideal Newtonian liquid un
der typical processing temperatures like 170-200 degrees C. The time-d
ependent stress/strain curves are similar to plasticized PVC and conve
ntional SBS rubbers. Styroflex is well miscible with other styrenic po
lymers, allowing custom-tailored properties.