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Synthesis of toughened elastomer from vernonia galamensis seed oil
Author(s) -
Afolabi Oladapo A.,
Aluko Mobolaji E.,
Wang Gino C.,
Anderson Winston A.,
Ayorinde Folahan O.
Publication year - 1989
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02682623
Subject(s) - elastomer , polystyrene , polymer , materials science , polyester , copolymer , polymer chemistry , composite material
This paper examines the synthesis of a toughened elastomer from Vernonia galamensis seed oil by reacting vernonia oil with vernonia oil‐derived suberic acid (octanedioic acid), and cross‐linking the pre‐polymer in the immediate presence of cross‐linked polystyrene prepared in situ. The paper also demonstrates that the progress of reaction can be followed by monitoring the generation of hydroxyl groups using infrared spectroscopy. Analysis of some crystalline material on the cooler parts of the reaction vessels revealed the presence of component fatty acids of vernonia oil. Transmission electron microscopy characterization of the synthesized toughened elastomer suggests that vernonia oil‐suberic acid polyester and polystyrene polymer are interpenetrating.