Thursday, June 07, 2012

Styrenic Block Copolymers


  • Styrenic Block Copolymers(SBCs) are a unique class of thermoplastic elastomers consisting of a two-phase structure of hard polystyrene endblocks and soft rubber midblocks that impart strength and elasticity. The polystyrene endblocks associate to form domains that lock the molecule into place without vulcanization.
  • SBCs possess the mechanical properties of rubbers and the processing characteristics of thermoplasts.
  • Styrenic Block Copolymers are made by anionic polymerisation with an organometallic catalyst such as butyllithium as initiator.
  • The use of SBCs in laminating films with controlled peel strengths.

No comments: