Back to Search
Start Over
Dual chain extension effect and antibacterial properties of biomolecules interleaved within LDH dispersed into PBS by in situ polymerization.
- Source :
-
Dalton Transactions: An International Journal of Inorganic Chemistry . 3/7/2018, Vol. 47 Issue 9, p3155-3165. 11p. - Publication Year :
- 2018
-
Abstract
- Nanocomposites based on poly(butylene succinate) (PBS) and hydrotalcite-type anionic clays (HTs) organo-modified with biomolecules characterized by antibacterial and/or antioxidant activities, 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 a molten polymer state, intercalated HT hybrid platelets acting here as a hybrid filler are found to be well dispersed into polymers while providing a chain extension effect on PBS. Moreover, the molecules, when hosted within a HT interlayer gap, do preserve their pristine antibacterial activity, both in HT and in the resulting PBS composites. In particular, under 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 with the hybrid HT filler as multifunctional materials in active packaging applications. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NANOCOMPOSITE materials
*BIOMOLECULES
*ANTIOXIDANTS
Subjects
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 47
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 128220996
- Full Text :
- https://doi.org/10.1039/c7dt03914j