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Composites for « white and green » solutions: Coupling UV resistance and chain extension effect from poly(butylene succinate) and layered double hydroxides composites.

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Title: Composites for « white and green » solutions: Coupling UV resistance and chain extension effect from poly(butylene succinate) and layered double hydroxides composites.
Authors: Marek, Adam A.1,2 adam.a.marek@polsl.pl, Verney, Vincent1, Totaro, Grazia3, Sisti, Laura3, Celli, Annamaria3, Leroux, Fabrice1
Source: Journal of Solid State Chemistry. Dec2018, Vol. 268, p9-15. 7p.
Subjects: Layered double hydroxides, Solution (Chemistry), Coupling agents (Chemistry), Polybutenes, Thermal analysis, X-ray diffraction
Abstract: Abstract Hybridization of layered double hydroxide (LDH) platelets of Zn 2 Al cation intra-sheet composition was performed with L -tyrosine (TYR), L -tryptophan (TRP) and 3-(4-hydroxyphenyl) propionic (HPP) acid, and the hybrid LDH materials were characterized by the means of conventional techniques as X-ray diffraction and thermal analysis to address their sandwich structures and their mass formulae, respectively. Subsequently they have been considered as "green" filler and dispersed into poly(butylene succinate) (PBS) through a melt extrusion process. In regard of the rheological properties, it was possible to extend the PBS chain thus leading to a better processability. Another aspect was the ability to stand photo-degradation under UV radiation for applicative purposes. Owing to the organic chromophores acting as potential UV stabilizers, it was found a higher chain extension effect for PBS in the case of LDH/TRP that was also performing in time of irradiation tests. This opens new routes for designing filler of "white and green" relevances to endow bio-source polymer with properties for practical applications and in respect of environment and global sustainability. Graphical abstract fx1 Highlights • The organo-modified Zn-Al layered double hydroxides were synthesized. • 3-(4-hydroxyphenyl)propionic acid, L -tyrosine and L -tryptophan were intercalated. • PBS composites with Zn-Al LDHs were prepared by melt extrusion. • The effect of Zn-Al LDHs on chain extension and photostability of PBS was observed. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:Abstract Hybridization of layered double hydroxide (LDH) platelets of Zn 2 Al cation intra-sheet composition was performed with L -tyrosine (TYR), L -tryptophan (TRP) and 3-(4-hydroxyphenyl) propionic (HPP) acid, and the hybrid LDH materials were characterized by the means of conventional techniques as X-ray diffraction and thermal analysis to address their sandwich structures and their mass formulae, respectively. Subsequently they have been considered as "green" filler and dispersed into poly(butylene succinate) (PBS) through a melt extrusion process. In regard of the rheological properties, it was possible to extend the PBS chain thus leading to a better processability. Another aspect was the ability to stand photo-degradation under UV radiation for applicative purposes. Owing to the organic chromophores acting as potential UV stabilizers, it was found a higher chain extension effect for PBS in the case of LDH/TRP that was also performing in time of irradiation tests. This opens new routes for designing filler of "white and green" relevances to endow bio-source polymer with properties for practical applications and in respect of environment and global sustainability. Graphical abstract fx1 Highlights • The organo-modified Zn-Al layered double hydroxides were synthesized. • 3-(4-hydroxyphenyl)propionic acid, L -tyrosine and L -tryptophan were intercalated. • PBS composites with Zn-Al LDHs were prepared by melt extrusion. • The effect of Zn-Al LDHs on chain extension and photostability of PBS was observed. [ABSTRACT FROM AUTHOR]
ISSN:00224596
DOI:10.1016/j.jssc.2018.08.026