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In the melt, grafting of polycarbonate onto polystyrene‐ block ‐poly(ethylene‐butylene)‐ block ‐polystyrene‐ grafted ‐maleic anhydride: Reactive extrusion
Author(s) -
Chevallier Celine,
Becquart Frederic,
Benoit Cyril,
Majeste JeanCharles,
Taha Mohamed
Publication year - 2014
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23816
Subject(s) - reactive extrusion , materials science , maleic anhydride , polystyrene , polycarbonate , polymer chemistry , grafting , extrusion , plastics extrusion , copolymer , chemical engineering , polymer , composite material , engineering
The use of reactions between polycarbonate (PC) and polystyrene‐ block ‐poly(ethylene‐butylene)‐ block ‐polystyrene‐ grafted ‐maleic anhydride (SEBS‐ g ‐MAH) is a convenient way to create SEBS‐ g ‐PC. Grafting was realized by reactive extrusion at three temperatures using SnOct 2 or TBD catalysts. SEC analyses showed the apparition of a double distribution when the TBD was used. The mean residence time widely increased when this catalyst was used, and the rheological curves depicted a percolation effect of the SEBS nodules in the PC matrix. No explicit evolution was found with the use of SnOct 2 . The thermal analyses showed the disappearance of the PC phase transition temperature. The Van Gurp‐Palmen plots confirmed the efficiency of the TBD catalyst and that 260°C was the optimal reactive extrusion temperature. POLYM. ENG. SCI., 54:2660–2668, 2014. © 2013 Society of Plastics Engineers