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KMID : 1024520060150060593
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Journal of the Environmental Sciences
2006 Volume.15 No. 6 p.593 ~ p.600
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Synthesis of SIS Triblock Copolymer by Living Anionic Polymerization and Its Oil Gelling Capacity
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Heo Jae-Joon
Lee Min-Gyu
Kim Si-Young
Ju Chang-Sik
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Abstract
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SIS triblock copolymers, one of the major raw materials of oil gelling agent, were synthesized by living anionic polymerization and the resultant copolymers formed with various shapes and sizes were used to examine their oil gelling capacities. Coupling method was adapted to form final triblock products from diblock living polymers. Prior to polymerization, the impurities in monomers and solvents were throughly removed by killing technique. We experimentally investigated the effects of operating parameters of synthesis and forming of SIS triblock copolymers on oil gelling capacity. The photocatalytic decomposition of SIS triblock copolymer under ultraviolet circumstance was also investigated and it is found that the addition of P-25 enhances the photocatalytic decomposition.
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KEYWORD
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Living anionic polymerization, SIS triblock copolymer, Oil gelling agent
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