• Polymer Science and Technology
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• v.12 no.3
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• pp.344-350
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• 2001

• 한국포장학회:학술대회논문집
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• 2007.04a
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• pp.105-123
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• 2007

• Polymer Science and Technology
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• v.14 no.2
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• pp.154-162
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• 2003

• Proceedings of the Korean Fiber Society Conference
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• 1992.06b
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• pp.95-95
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• 1992

• Polymer Science and Technology
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• v.9 no.1
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• pp.12-16
• /
• 1998

• Proceedings of the Korean Society of Rheology Conference
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• 2002.05a
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• pp.3-6
• /
• 2002

• Proceedings of the Korean Fiber Society Conference
• /
• 2001.04b
• /
• pp.83-86
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• 2001

• Fiber Technology and Industry
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• v.8 no.4 s.32
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• pp.411-420
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• 2004

• Polymer(Korea)
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• v.29 no.4
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• pp.321-330
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• 2005

In 1990's the Korean polyolefin industry boomed up through the development of magnificient polymerization catalysts. To understand the general situation of polymerization catalyst R & D, the various experimental results had been summarized for the investigation of not only the supported Ziegler-Natta catalyst used presently in polyolefin industry but also the metallocene catalysts applied for the preparation of special grade of polyolefin. In addition, it had been shown that the new polymeric materials were prepared by new developed catalyst, and the polymer in-situ nanocomposites could be obtained with the application of catalyst heterogenization procedures.

• Membrane Journal
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• v.26 no.4
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• pp.310-317
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• 2016

Lithium ion secondary battery (LISB) is an energy conversion system operated via charging-discharging cycle based on Lithium ion migration. LISB has a lot of advantages such as high energy density, low self-discharge rate, and a relatively high lifetime. Recently, increasing demands of electric vehicles have been encouraging the development of LISB with high capacity. Unfortunately, it causes some critical safety issues. It includes dendrite formation on negative electrode, resulting in electric shortage problems and battery explosion. Also, the elevated temperatures occurred during the LISB operation induces thermal shrinkage of polyolefin (e.g., polyethylene and polypropylene) separators. Consequently, the low thermal stability leads to decay of LISB performances and the reduction of lifetime. In this study, sulfonated poly (arylene ether sulfone) (SPAES) random copolymers were used as key materials to prepare polyolefin pore-filling separator. The resulting separators were evaluated in the term of metal ion chelation capability associated with dendrite formation, $Li^+$ ion conductivity and thermal durability.