Blends of amide modified polybutylene terephthalate and polycarbonate: transesterification and degradation

Influence of the Activity of Transesterification Catalysts on the Phase Behavior of PC-PET Blends

“…In Figure 4 the T g values as a function of the percentage of DNOP are reported: it is possible to observe a decrement of T g with the DNOP content, up to about 10 8C with 1 wt.-% of DNOP. The same behavior has been observed for PC/PBT systems in the presence of triphenyl phosphite: [25] in this case, the authors interpreted the decrement of T g to be due to the plasticizing effect of the inhibitor. The same behavior should be observed also for the T g of PET.…”

Influence of the morphology on the fire behavior of a polycarbonate/poly(butylene terephthalate) blend

“…It has been shown that PBT crystallization behavior is strongly influenced by the presence of PC13 because PC macromolecules have been observed in the interlamellar zones of PBT 14. Moreover, the partial miscibility of the blend is partly dependent on the transesterification reaction between PC and PBT, which was described by several authors 11, 13–16. The size scale of the morphology of the blend was found to be strongly dependent on interfacial chemical reactions.…”

Blends of amide modified polybutylene terephthalate and polycarbonate: phase separation and morphology

“…The transesterification between the PC and the PBT/PBTA which is catalysed by titanate residues in the PBTA can be suppressed by addition of TPPi. A side-effect of TPPi is that it plasticizes the PC 14 We studied the phase behaviour, the phase structure and the crystallization of these new PC/PBTA blends. The results of these PC/PBTA blends were compared with those of PC/PBT blends.…”