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http://dx.doi.org/10.14478/ace.2013.1117

Measurement and Analysis of Diffusivity for SBS/cyclic Solvent Systems Using CCIGC Technique  

Kim, Jiui (Department of Chemical and Biological Engineering, Hanbat National University)
Hong, Seong Uk (Department of Chemical and Biological Engineering, Hanbat National University)
Publication Information
Applied Chemistry for Engineering / v.25, no.2, 2014 , pp. 147-151 More about this Journal
Abstract
In many polymer processing operations, the diffusion of small molecules in polymeric materials plays an important role. The fundamental physical property required to design and optimize processing operations is the mutual diffusion coefficient. To investigate the transport properties of polymer/solvent systems at infinite dilution, capillary column inverse gas chromatography (CCIGC) is often employed. In this study, diffusion and partition coefficients of cyclic solvents in styrene/butadiene/styrene (SBS) block copolymer were measured over a wide temperature range using the CCIGC technique.
Keywords
diffusion coefficient; free-volume theory; SBS block copolymer;
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