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Encapsulation of benzil in the cavities of crosslinked styrene‐based copolymers and its conversion to benzilic acid
Author(s) -
Kuriakose Sunny,
Pillai V. N. Rajasekharan
Publication year - 1994
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.1994.210340215
Subject(s) - benzil , copolymer , divinylbenzene , polystyrene , polymer chemistry , styrene , materials science , polymer , monomer , polymerization , chemistry , organic chemistry , composite material , catalysis
Crosslinking copolymerization of styrene with divinylbenzene, butanediol dimethacrylate and ethyleneglycol dimethacrylate in the presence of benzil in the dissolved state results in benzil‐encapsulated crosslinked polymers. Resins with various crosslink densities were prepared by adjusting the monomer/crosslinker ratio. The benzil entrapped in the cavities was subjected to benzil‐benzilic acid rearrangement. The precursor resins and the rearrangement products were characterized by IR and 13 C NMR spectroscopy. The surface properties of polystyrene and benzil‐encapsulated polystyrene were compared by scanning electron micrography.