Analysis of polyolefin compositions through near infrared spectroscopy |
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| Authors: | Liana Franco Padilha Cristine Carretoni Ferreira Fabricio Machado Márcio Nele José Carlos Pinto |
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| Affiliation: | 1. Programa de Engenharia Química/COPPE, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, Brazil;2. Instituto de Química, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasília, DF, Brazil |
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| Abstract: | In this work, NIRS is employed to provide compositions of α‐olefin copolymers, allowing for evaluation of the effects of certain key process variables on the final NIR spectral responses of obtained polymer materials. This work also introduces a new temperature programmed analytical technique, which combines NIRS measurements with partial fractionation of α‐olefin copolymers. The new proposed technique can be used for evaluation of polyolefin compositions, as presented here for poly(propene/1‐butene) copolymers. Besides, preliminary results obtained from thermal fractionation experiments indicate that this new proposed experimental technique can be employed for characterization of comonomer sequence distributions of α‐olefin copolymers. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131, 40127. |
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| Keywords: | copolymers polyolefins properties and characterization spectroscopy |
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