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Production of core‐shell polymer particles‐containing cardanol by semibatch combined suspension/emulsion polymerization
Author(s) -
Besteti Marina D.,
Souza Fernando G.,
Freire Denise M.G.,
Pinto José Carlos
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.23660
Subject(s) - cardanol , polystyrene , materials science , styrene , emulsion polymerization , copolymer , suspension polymerization , polymer chemistry , emulsion , polymer , chemical engineering , differential scanning calorimetry , suspension (topology) , radical polymerization , composite material , epoxy , mathematics , physics , homotopy , pure mathematics , thermodynamics , engineering
The main objective of the present work is to study the copolymerization of cardanol and styrene for production of polymer beads intended for enzyme immobilization. Initially, free‐radical copolymerizations of cardanol and styrene were performed in suspension, showing that effective incorporation of cardanol into polystyrene chains is not possible at usual suspension polymerization conditions. Then, free‐radical copolymerizations of cardanol and styrene were performed in semibatch combined suspension/emulsion reactions, showing that cardanol can be incorporated into polystyrene chains (as confirmed through Nuclear Magnetic Resonance and Differential Scanning Calorimetry analyses) when it is fed as an emulsion constituent. In these cases, the final polymer particles presented the usual core/shell morphology, with high‐specific areas and large average pore diameters, as required by enzyme immobilization applications. POLYM. ENG. SCI., 54:1222–1229, 2014. © 2013 Society of Plastics Engineers