TY - JOUR
T1 - Reactive blending of polypivalolactone with polycarbonate
AU - Tijsma, Edze Jan
AU - van der Does, Leen
AU - Bantjes, Adriaan
AU - Vulić, Ivan
AU - Werumeus Buning, Gerard Hidde
PY - 1993
Y1 - 1993
N2 - Blends of polypivalolactone (PPVL) with bisphenol‐A polycarbonate (PC) were studied. Physical PPVL/PC blends showed one Tg close to the Tg of 145 °C for PC, indicating immiscibility. Reactive blending of PPVL and PC with 0.5 wt.‐% tetrabutylorthotitanate was performed in diphenyl ether (260 °C) and in a twin screw extruder (TSE) at 280 °C. Based on the results from NMR, FT‐IR and thermal analysis, it was concluded that interchange reactions had occurred. The thermal properties indicated that, due to these interchange reactions, PPVL/PC blends had become more miscible. Although blending in a TSE was more efficient with respect to interchange reactions compared with blending in diphenyl ether, complete randomization was not observed.
AB - Blends of polypivalolactone (PPVL) with bisphenol‐A polycarbonate (PC) were studied. Physical PPVL/PC blends showed one Tg close to the Tg of 145 °C for PC, indicating immiscibility. Reactive blending of PPVL and PC with 0.5 wt.‐% tetrabutylorthotitanate was performed in diphenyl ether (260 °C) and in a twin screw extruder (TSE) at 280 °C. Based on the results from NMR, FT‐IR and thermal analysis, it was concluded that interchange reactions had occurred. The thermal properties indicated that, due to these interchange reactions, PPVL/PC blends had become more miscible. Although blending in a TSE was more efficient with respect to interchange reactions compared with blending in diphenyl ether, complete randomization was not observed.
U2 - 10.1002/masy.19930750118
DO - 10.1002/masy.19930750118
M3 - Article
VL - 1993
SP - 193
EP - 197
JO - Makromolekulare Chemie. Macromolecular symposia
JF - Makromolekulare Chemie. Macromolecular symposia
SN - 0258-0322
IS - 75
ER -