Elastic properties, chain aggregates

Restructuring under Tension Elastic Properties of Chain Aggregates 245... 

Ogawa, K., Vogt, T., Ulhnann, M., Johnson, S. and Friedlander, S.K. (2000). Elastic properties of nanoparticle chain aggregates of TiOj, AI2O3, and FcjOs generated by laser ablation. J. Appl. Phys., 87, 63-73. 

Abstract This chapter deals with the mechanical properties of single polymer chains, aggregates, and supramolecular complexes. The topics discussed cover a broad range from fundamental statistical mechanics of the equilibrium elastic properties of single polymer chains to details of the behavior of binding pockets in... 

Ogawa K, Vogt T, Ullniann M, Johnson S and Friedlander S K (2000) Elastic Properties of Nanoparticle Chain Aggregates of Ti02, AUOj, and FejOj Generated by Laser Ablation, J Appl Phys 87 63-73. 

During the mid-1960 s our attention was drawn to the remarkable properties of the ABA. type of "triblock" copolymers, where the A block is polystyrene and the B block is a poly diene (butadiene or isoprene). These yield products of the "thermoplastic elaatomer" type, since the glassy polystyrene end blocks aggregate into regular and well-formed domains which act as thermoplastic net work junctions for the elastic polydiene chains. 

The synthesis and characterization of these ABA block copolymers of styrene and dienes have been described elsewhere (JO, 11). Since the polystyrene end blocks aggregate into glassy domains which act as network junctions, the elastic center blocks must virtually represent the network chains/ The polystyrene domains should also act as a finely divided filler. Hence it might be expected that the mechanical properties of these materials could depend on the two basic parameters polystyrene content and length of center block ( molecular weight between crosslinks ). 

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