The effect of filler surface energy on the T_g of silica—polydimethylsiloxane composites

Layered Silicate‐Induced Enhancement of Fracture Toughness of Epoxy Molding Compounds over a Wide Temperature Range

“…Generally, it is accepted that the incorporation of filler does not influence the T g of a polymer. However, there have been reports of the T g of polymers shifting to higher temperature upon filler addition 25–28. In our experiments, an increase in T g was observed only in the exfoliated and well dispersed YX system.…”

Glass Transition and Interfacial Segmental Dynamics in Polymer-Particle Composites

“…78,79 In a subsequent publication, Yim and St. Pierre 80 demonstrated that the treatment of particle surfaces to alter the interfacial energetics also modified the polymer crystallization behavior in silica-reinforced PDMS. This raises the possibility that the changes in T g found in the earlier work 77 may be a consequence of this crystallization rather than arising from a direct effect of the particles on the segmental dynamics. As mentioned above, crystalline regions have a well-known effect on T g of adjacent amorphous chains.…”

“…Accurate volume measurements are more difficult than calorimetry and thus only a few studies 64,[75][76][77] have reported the glass transition of filled polymers by dilatometry (Table VI). The earliest was by Mason,75 who found no T g shift in natural rubber filled with either a larger particle MT carbon black or a tenfold-smaller HAF carbon black at filler concentrations up to 18% by volume.…”

Interphase phenomena in superconductive polymer-ceramic nanocomposites

“…2). It is worth stating that the observed change of the loss tangent curves is a rare feature for conventionally not nanosized ceramic polymer composites [6,7].…”