Jump to main content
Jump to site search


Dual chain extension effect and antibacterial properties of biomolecules interleaved within LDH dispersed into PBS by in situ polymerization

Abstract

Nanocomposites based on poly(butylene succinate) (PBS) and hydrotalcite-type anionic clays (HTs) organo-modified with biomolecules characterized by antibacterial and/or antioxidant activity, such as L-ascorbic acid (ASA), phloretic acid (HPP), L-tyrosine (TYR) and L-tryptophan (TRP), have been prepared by in situ polymerization. From XRD analysis and rheology experiments in molten polymer state, intercalated HTs hybrid platelets acting here as hybrid filler are found to be well dispersed into polymer while providing a chain extension effect on PBS. Moreover, the molecules, when hosted within HT interlayer gap, do preserve their pristine antibacterial activity, both in HT and in the resulting PBS composites. In particular, in the experimental conditions tested, HT/ASA and HT/TYR present the best combination of both properties (chain extension effect and antibacterial), especially versus E. coli as high as 90 and 97 % of inhibition, respectively, using 2.5 wt. % hybrid filler only. These findings open future applications for PBS associated to hybrid HT filler as multifunctional materials in active packaging applications.

Back to tab navigation

Supplementary files

Publication details

The article was received on 17 Oct 2017, accepted on 05 Jan 2018 and first published on 05 Jan 2018


Article type: Paper
DOI: 10.1039/C7DT03914J
Citation: Dalton Trans., 2018, Accepted Manuscript
  •   Request permissions

    Dual chain extension effect and antibacterial properties of biomolecules interleaved within LDH dispersed into PBS by in situ polymerization

    G. Totaro, L. Sisti, A. Celli, I. Aloisio, D. Di Gioia, A. A. Marek, V. Verney and F. Leroux, Dalton Trans., 2018, Accepted Manuscript , DOI: 10.1039/C7DT03914J

Search articles by author

Spotlight

Advertisements