Accession Number : ADA265379


Title :   Fracture Behavior of Ionomers and Ionomeric Blends


Corporate Author : RUTGERS - THE STATE UNIV PISCATAWAY NJ DEPT OF MECHANICS AND MATERIALS SCIENCE


Personal Author(s) : Hara, Masanori


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265379.pdf


Report Date : 27 Feb 1993


Pagination or Media Count : 3


Abstract : We have elucidated the deformation/fracture behavior of ionomers, and correlated them to their microstructure. We have also found important molecular variables to achieve enhanced fracture properties of ionomers: high ion content above a critical value, divalent counterions, and excess neutralizing agent. We have elucidated the structural changes associated with the change of each molecular variable. Subsequently, we have produced unique blends made of small amounts of ionomers and large amounts of unmodified polymers. They show synergistic mechanical behavior, retention of transparency of the unmodified polymer, good processability, and excellent cost performance. We have elucidated the structural characteristics responsible for these behavior. (Author)


Descriptors :   *POLYSTYRENE , *IONOMERS , IONS , MICROSTRUCTURE , POLYMERS , POLYMETHYL METHACRYLATE , FRACTURE(MECHANICS) , VALENCE , MOLECULAR STRUCTURE , CROSSLINKING(CHEMISTRY) , VARIABLES , TRANSPARENCE , NEUTRALIZATION , COVALENT BONDS , DEFORMATION


Subject Categories : Physical Chemistry
      Polymer Chemistry
      Atomic and Molecular Physics and Spectroscopy
      Mechanics


Distribution Statement : APPROVED FOR PUBLIC RELEASE