Relevant factors for the eco-design of polylactide/sisal biocomposites to control biodegradation in soil in an end-of-life scenario

Badía, J.D.; Strömberg, Emma; Kittikorn, Thorsak; Ek, Monica; Karlsson, Sigbritt; Ribes‐Greus, A.

doi:10.1016/j.polymdegradstab.2017.06.004

Cited by 41 publications

(16 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Poly(lactide) (PLA) is manufactured in an annual scale of ≈0.2 million tons and has interesting plastic abilities, which enables utilization in a wide range (e.g., food packaging, pharmaceuticals). In contradiction to the majority of fossil‐based plastics, poly(lactide) is to some extent biodegradable depending on the conditions and environment and is degraded to, for instance, CO 2 ; therefore, environmental issues are reduced if PLA is not treated within the current waste management . Nonetheless, the breakdown of PLA in composting plants is regularly not fully accomplishable in the scheduled time frame.…”

Section: Methodsmentioning

confidence: 99%

Selective Degradation of End‐of‐Life Poly(lactide) via Alkali‐Metal‐Halide Catalysis

Alberti

Damps

Meißner

et al. 2019

Advanced Sustainable Systems

View full text Add to dashboard Cite

The recycling of poly(lactide) (PLA) is studied. Using methanol and alkali‐metal‐halides as catalyst, PLA is degraded to produce methyl lactate, which is a suitable chemical for the regeneration of PLA. An excellent degree of degradation (conversions: >99%, yields: >99%) is achieved in less than 20 min utilizing microwave heating. Remarkably, PLA goods are successfully converted into methyl lactate.

show abstract

Section: Methodsmentioning

confidence: 99%

Selective Degradation of End‐of‐Life Poly(lactide) via Alkali‐Metal‐Halide Catalysis

Alberti

Damps

Meißner

et al. 2019

Advanced Sustainable Systems

View full text Add to dashboard Cite

show abstract

“…The use of the differential scanning calorimetry (DSC) is essential to understand the thermal properties of the biopolymers subjected to different degrading conditions [76]- [80]. Indicators of the degradation such as the partial melting areas [77], the crystallinity degree [81], the relative partial crystallinity [82] or the balance among amorphous and rigid amorphous fractions [83] have been previously proposed for monitoring the degradation of some biopolymers. In this study, the balance between the evolution of the crystallinity degree and the lamellar thickness offers interesting discussion, as shown hereinafter.…”

Section: Thermal Propertiesmentioning

confidence: 99%

Tailored electrospun nanofibrous polycaprolactone/gelatin scaffolds into an acid hydrolytic solvent system

Cháfer

Badía

Ribes‐Greus

2018

European Polymer Journal

Self Cite

View full text Add to dashboard Cite

Blended nanofibrous scaffolds based on polycaprolactone (PCL) and gelatin (Ge) were successfully prepared. A formic/acetic acid (1:1) mixture was used to dissolve PCL/Ge blends from 100/0 to 20/80 %wt in steps of 10 %wt. The hydrolysis of the PCL diluted in the formic/acetic acid mixture was considered as a method for tailoring the surface morphology and physicochemical features of the nanofibrous PCL/Ge scaffolds as a function of the dissolution time. The fibre diameter remained in the nanoscale range for all the studied scaffolds, which is crucial to mimic the extra-cellular matrix size. The reduction of the intrinsic viscosity, molar mass and hydrodynamic radius found for the PCL molecules as a function of the dissolution time, consequently diminished the entanglement capability of the polymeric chains. Subsequently, the fibre diameter decreased as dissolution time increased, for all the studied compositions. While the crystallinity of the scaffolds with high PCL content increased as a function of the dissolution time, the scaffolds with high percentage of Ge showed the lowest crystallinity degree, which was ascribed to the hindering effect of the Ge diffused among the PCL segments. The wettability increased as a function of the Ge content due to the high hydrophilic behaviour of these molecules. It also increased as a function of the dissolution time, due to the more hydroxyl groups available in PCL segments to interact with water molecules. As a whole, the physicochemical assessment of the electrospun scaffolds revealed an effective tailoring procedure to obtain functionalised PCL/Ge scaffolds with specific properties as a function of the dissolution time before electrospinning.

show abstract

“…The study of the thermal properties is essential to understand the behaviour of polymers subjected to different degrading conditions [49,50,51,52,53,54,55,56,57,58]. The thermal properties of the scaffolds were assessed by means of differential scanning calorimetry (DSC).…”

Section: Resultsmentioning

confidence: 99%

Performance of Polyester-Based Electrospun Scaffolds under In Vitro Hydrolytic Conditions: From Short-Term to Long-Term Applications

et al. 2019

View full text Add to dashboard Cite

The evaluation of the performance of polyesters under in vitro physiologic conditions is essential to design scaffolds with an adequate lifespan for a given application. In this line, the degradation-durability patterns of poly(lactide-co-glycolide) (PLGA), polydioxanone (PDO), polycaprolactone (PCL) and polyhydroxybutyrate (PHB) scaffolds were monitored and compared giving, as a result, a basis for the specific design of scaffolds from short-term to long-term applications. For this purpose, they were immersed in ultra-pure water and phosphate buffer solution (PBS) at 37 °C. The scaffolds for short-time applications were PLGA and PDO, in which the molar mass diminished down to 20% in a 20–30 days lifespan. While PDO developed crystallinity that prevented the geometry of the fibres, those of PLGA coalesced and collapsed. The scaffolds for long-term applications were PCL and PHB, in which the molar mass followed a progressive decrease, reaching values of 10% for PCL and almost 50% for PHB after 650 days of immersion. This resistant pattern was mainly ascribed to the stability of the crystalline domains of the fibres, in which the diameters remained almost unaffected. From the perspective of an adequate balance between the durability and degradation, this study may serve technologists as a reference point to design polyester-based scaffolds for biomedical applications.

show abstract

Relevant factors for the eco-design of polylactide/sisal biocomposites to control biodegradation in soil in an end-of-life scenario

Cited by 41 publications

References 56 publications

Selective Degradation of End‐of‐Life Poly(lactide) via Alkali‐Metal‐Halide Catalysis

Selective Degradation of End‐of‐Life Poly(lactide) via Alkali‐Metal‐Halide Catalysis

Tailored electrospun nanofibrous polycaprolactone/gelatin scaffolds into an acid hydrolytic solvent system

Performance of Polyester-Based Electrospun Scaffolds under In Vitro Hydrolytic Conditions: From Short-Term to Long-Term Applications

Contact Info

Product

Resources

About