Chain extender effect of 3-(4-hydroxyphenyl)propionic acid/layered double hydroxide in biopolyesters containing the succinate moiety

Sisti, Laura; Totaro, Grazia; Celli, Annamaria; Marek, A.; Verney, Vincent; Leroux, Fabrice

doi:10.1039/c9nj06322f

Cited by 3 publications

(4 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…), respectively. A large variety of organic anions have been used to intercalate the space between the lamellae to organo-modify the hydroxyl platelets and to adapt them to specific end-uses (Marek et al, 2018(Marek et al, , 2019(Marek et al, , 2020Sisti et al, 2019aSisti et al, , 2019bSisti et al, , 2020Totaro et al, 2018). Recently, LDHs were used to intercalate cumbersome molecules making them an inorganic vessel for drug release and/or as polymer filler (Taviot-Guého et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Recycling by-design of plastic through formulation with thermally protected enzymes in layered double hydroxide structures

Romano

Rosato

Totaro

et al. 2023

Journal of Cleaner Production

Self Cite

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

“…Mg was selected as it proved more appropriate in terms of sustainability and biocompatibility. Indeed, the natural LDH, commonly used as antacid in commercial drugs, is based on Mg/Al (Sisti et al, 2020). The effect of different enzyme amounts is evaluated in terms of immobilization efficiency and release ability.…”

Section: Introductionmentioning

confidence: 99%

Recycling by-design of plastic through formulation with thermally protected enzymes in layered double hydroxide structures

Romano

Rosato

Totaro

et al. 2023

Journal of Cleaner Production

Self Cite

View full text Add to dashboard Cite

“…With respect to PBS it has higher biodegradability due to its lower crystallinity and higher polymer chains flexibility. A molar feed ratio between succinate and adipate equal to 80/20 is indicated to be the best balance between the biodegradation rate and thermomechanical properties [43]. PCL is a semicrystalline polymer as well, prepared from the potentially bio-based cyclic ester ε-caprolactone or 6-hydroxyhexanoic acid.…”

Section: Introductionmentioning

confidence: 99%

Enzymatic Degradation of the Most Common Aliphatic Bio-Polyesters and Evaluation of the Mechanisms Involved: An Extended Study

et al. 2022

Self Cite

View full text Add to dashboard Cite

Commercial hydrolytic enzymes belonging to different subclasses (several lipases, proteinase k, cutinase) were investigated for their ability to degrade different aliphatic polyesters, i.e., poly(butylene succinate) (PBS), poly(butylene succinate-co-adipate) (PBSA), two poly(caprolactone), having two different molecular weights, poly(lactic acid) (PLA) and poly(propylene carbonate) (PPC). The enzyme screening was first carried out by investigating the capacity of fully degrading the target polymers in 24 h, then weight loss measurements of selected polyesters and target enzymes were performed. Solid residues after enzyme degradation were characterized by proton nuclear magnetic resonance (1H NMR), gel permeation chromatography (GPC), infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC) and thermogravimetry (TGA). Liquid fractions were studied via GPC, 1H NMR and high-performance liquid chromatography (HPLC). PCL and PBSA were found to be the most biodegradable polyesters, under the conditions used in this study. PBS was fully degraded only by cutinase, whereas none of the tested enzymes were able to completely degrade PLA and PPC, in the conditions assessed here. Cutinase exhibited the highest hydrolytic activity on PBSA, while lipase from Candida sp. (CALB) on low molecular weight PCL. Chemical analyses on residual solids showed that the enzymatic degradation occurred homogeneously from the surface through an erosion mechanism and did not significantly affect the macromolecular structure and thermal stability. Cleaving action mode for each enzyme (endo- and/or exo-type) on the different polyesters were also proposed based on the evaluation of the degradation products in the liquid fraction.

show abstract

“…Worldwide, the problem of polymer pollution (especially white pollution) caused by improper disposal of waste polymers and inadequate regulations has attracted the attention of various governments [ 19 , 20 ]. These concerns have prompted scientists and industry players to develop and promote biodegradable polymers [ 21 ].…”

Section: Polypropylene Carbonatementioning

confidence: 99%

Research and Application of Polypropylene Carbonate Composite Materials: A Review

Meng

Zhang

et al. 2022

Polymers

View full text Add to dashboard Cite

The greenhouse effect and plastic pollution caused by the accumulation of plastics have led to a global concern for environmental protection, as well as the development and application of biodegradable materials. Polypropylene carbonate (PPC) is a biodegradable polymer with the function of “carbon sequestration”, which has the potential to mitigate the greenhouse effect and the plastic crisis. It has the advantages of good ductility, oxygen barrier and biocompatibility. However, the mechanical and thermal properties of PPC are poor, especially the low thermal degradation temperature, which limits its industrial use. In order to overcome this problem, PPC can be modified using environmentally friendly materials, which can also reduce the cost of PPC-based products to a certain extent and enhance their competitiveness in terms of improving their mechanical and thermal properties. In this paper, we present different perspectives on the synthesis, properties, degradation, modification and post-modification applications of PPC. The modification part mainly introduces the influence of inorganic materials, natural polymer materials and degradable polymers on the performance of PPC. It is hoped that this work will serve as a reference for the early promotion of PPC.

show abstract

Chain extender effect of 3-(4-hydroxyphenyl)propionic acid/layered double hydroxide in biopolyesters containing the succinate moiety

Abstract: 3-(4-Hydroxyphenyl)propionic acid intercalated in Mg2Al/layered double hydroxide has been used as a filler in biopolyesters containing the succinate moiety, with the aim of inducing a chain extender effect.

Cited by 3 publications

References 59 publications

Recycling by-design of plastic through formulation with thermally protected enzymes in layered double hydroxide structures

Recycling by-design of plastic through formulation with thermally protected enzymes in layered double hydroxide structures

Enzymatic Degradation of the Most Common Aliphatic Bio-Polyesters and Evaluation of the Mechanisms Involved: An Extended Study

Research and Application of Polypropylene Carbonate Composite Materials: A Review

Contact Info

Product

Resources

About