Crystallization Elution Fractionation of LLDPEs Made with Metallocene Catalysts
作者： Abdulaziz A. Alghyamah , João B. P. Soares
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摘要: Summary: Temperature rising elution fractionation (TREF) and crystallization analysis (CRYSTAF) fractionate semicrystalline polymers according to their crystallizabilities from dilute solution have been widely used measure the CCD of LLDPE. A new technique, known as (CEF), has developed recently. The main difference between CEF TREF CRYSTAF is that cycle in performed dynamically under solvent flow a long column contains an inert support material. In this paper, several metallocene-LLDPE resins analyzed by investigate effect cooling parameters, comonomer fraction, polymer molecular weight, blend cocrystallization on fractionation. This technique can be obtain CCDs with better resolution shorter times than CRYSTAF.
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