Outstanding chain-extension effect and high UV resistance of polybutylene succinate containing amino-acid-modified layered double hydroxides

Beilstein Journal of Nanotechnology

Vincent Verney^1¹  Christine Taviot-Gueho^1²  Adam A. Marek^1^2^3³ 

[1] Department of Organic Chemical Technology and Petrochemistry, Silesian University of Technology, 44100 Gliwice, Poland^2;Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Università di Bologna, Via Terracini 28, 40131 Bologna, Italy^3;Institut de Chimie de Clermont-Ferrand (ICCF), SIGMA Clermont, CNRS, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France^1

关键词: amino acid;    layered double hydroxide;    phenylalanine;    polybutylene succinate;   

DOI  :  10.3762/bjnano.10.68

学科分类：地球科学(综合)

来源: Beilstein - Institut zur Foerderung der Chemischen Wissenschaften

【 摘 要 】

Polybutylene succinate (PBS) nanocomposite materials were prepared using a melt compounding process. The Mg₂Al-based PBS nanocomposites, dispersed with inorganic–organic hybrid materials (layered double hydroxides, LDHs), were functionalized with the amino acids L-histidine (HIS) and L-phenylalanine (PHE). The rheological and anti-ultraviolet (anti-UV) properties were investigated and compared to filler-free PBS as well as LDH Mg₂Al/nitrate as references. Both organo-modified LDHs exhibited a remarkable chain-extension effect for PBS with an outstanding increase in the zero-shear viscosity η₀ for PBS–Mg₂Al/PHE (two order of magnitude increase as compared to filler-free PBS). These results were compared to data found in the literature. Moreover, HIS and PHE anions embedded into the LDH structure can successfully prevent the chain scission reactions that usually occur during photo-ageing of PBS under UV radiation exposure. This highlights the outstanding performance of the LDH hybrid materials, and in particular, their application as a polymer chain extender and UV stabilizer for PBS, which can likely be extended to other biodegradable polymers.

【 授权许可】

CC BY