Fast Analytical Temperature Rising Elution Fractionation (ATREF) Method |
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Authors: | Adrian Boborodea Jacques Michel André Luciani |
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Affiliation: | 1. Certech ASBL , Seneffe , Belgium;2. Total Research &3. Technology , Feluy , Belgium |
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Abstract: | Conventional analytical temperature rising elution fractionation (ATREF) is performed using slowly crystallized polymers in about 16 h. In this work, we developed a fast ATREF method in which the polymer sample is directly injected on the column at room temperature, thus reducing the analysis time to about 1 h. The method was tested using four metallocene polyethylenes with unimodal short chain branching distributions and different densities, previously analyzed by ATREF using a cooling rate of 0.1°C/min. The obtained results demonstrate that the fast ATREF method is very effective and accurate in evaluating short chain branching distribution for polyolefins having unimodal distributions. |
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Keywords: | Fast cooling Polyolefin Quench TREF Unimodal distribution |
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