ionomer cluster
Ionic aggregate, in a polymer matrix of low polarity, formed through interactions of ionomer multiplets.
  1. The @M03955@ of the polymer segments surrounding the multiplets is reduced relative to that of bulk material. With increasing ion content, the @N04262@ of the @I03229@ multiplets increases, leading to overlapping of the restricted @M03955@ regions around the multiplets and the formation of clusters.
  2. Typically, an @I03229@ exhibits two @G02640@ temperatures (Tg), one for the non-polar matrix and the other for clusters.
PAC, 2006, 78, 2067. 'Terminology of polymers containing ionizable or ionic groups and of polymers containing ions (IUPAC Recommendations 2006)' on page 2072 (