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http://dx.doi.org/10.7317/pk.2015.39.3.388

Effect of Low Molecular Weight Species on the Interfacial Tension of PC/SAN Blend  

Yang, Dongjin (Division of Advanced Materials Science and Engineering, College of Engineering, Kongju National University)
Son, Younggon (Division of Advanced Materials Science and Engineering, College of Engineering, Kongju National University)
Publication Information
Polymer(Korea) / v.39, no.3, 2015 , pp. 388-393 More about this Journal
Abstract
Low molecular weight species were extracted from PC and SAN by a solvent extraction method in order to investigate the effect of low molecular weight species on interfacial tension and affinity between PC and SAN. From the analysis of molecular weight distribution by the GPC, it was confirmed that the low molecular weight species were effectively eliminated by the solvent extraction. Interfacial tension measurements and morphological observation were carried out with the PC and SAN of which the low molecular weight species were extracted. Interfacial tension was increased and the infinity was decreased for the extracted PC and SAN pair. This result implied that the low molecular weight species play a role as a compatibilizer between two polymers. Among two polymers, low molecular weight SAN contributes more in the compatibilization. Thus, it is favorable to use SAN containing a larger amount of low molecular weight species in fabrication of PC/ABS blend.
Keywords
interfacial tension; low molecular weight; PC; SAN;
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