Study on the degradation of biodegradable poly (glycerol maleate) (PGM) microbeads

Hsieh, Yi‐Kong; Hung, Pei-Hsuan; Huang, Chieh-Wei; Chuang, Kai-Chun; Wang, Jane

doi:10.1016/j.polymdegradstab.2020.109223

Cited by 10 publications

(13 citation statements)

References 34 publications

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“…The large standard deviation measured on our samples may be associated with the elaboration process but also to the limited the number of particles measured by image analysis. These diameters are nonetheless consistent with other types of microparticles obtained using a similar process and determined by SEM or optical microscopy [16]. From the SEM images, the surface roughness can be qualitatively observed.…”

Section: Morphology Of Microbeadssupporting

confidence: 88%

“…These laws and decrees have led manufacturers to develop sustainable solutions with the use of particles or beads, for example in exfoliation products, such as natural organic ingredients including plant or fruits hulls, kernels seeds, microcrystalline cellulose or the use of mineral particles such as silica or pumice stone [13,14]. If these additives have the benefit to being natural and biodegradable materials compared to conventional polymers [15,16], they nonetheless also present drawbacks because of their irregular shapes and size; they are generally colored, not or poorly stable in aqueous medium, with an inadequate hardness and their commercial quantity and availability are rather limited [17]. The cosmetic industry is thus interested in developing biodegradable particles in the micrometer size range for applications such as facial cleaning or scrub [5-8, 13, 42, 43] having a smoother action than natural crushed ingredients [18,19].…”

Section: Introductionmentioning

confidence: 99%

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Design of Polyhydroxyalkanoate (PHA) Microbeads with Tunable Functional Properties and High Biodegradability in Seawater

et al. 2021

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Commercial poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) and poly(3hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) were used to prepare microbeads, with diameter ranging from 50 to 100 µm, by an emulsion-evaporation process. The properties of the beads reveal that the elaboration process enables the formation of spherical particles, that the crystallinity of the former polymer is not altered during the process and that the surface roughness of the particles can be tuned by changing the nature of the lateral chain in the PHA structure, in good correlation with its crystalline behavior. The mechanical properties of the different PHA beads are also found to be intimely linked with the crystalline content of the beads, with modulus varying between 1 to 7 GPa. All these properties are also governing the degradation behavior of these materials, as tested under marine environment. With a rapid degradation, similar to cellulose, and a degradation rate correlated with the crystalline content, these results emphasize the interest in developing PHA materials with tunable functions and degradation properties.

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Section: Morphology Of Microbeadssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Design of Polyhydroxyalkanoate (PHA) Microbeads with Tunable Functional Properties and High Biodegradability in Seawater

et al. 2021

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“…The large standard deviation measured on our samples may be associated with the elaboration process but also to the limited the number of particles measured by image analysis. These diameters are nonetheless consistent with other types of microparticles obtained using a similar process and determined by SEM or optical microscopy [16]. ) due to instabilities generated by the topography on top of each bead and the variation in height imposed by the radius of curvature of the beads.…”

Section: Nanomechanical Propertiessupporting

confidence: 88%

Design of Polyhydroxyalkanoate (PHA) Microbeads with Tunable Functional Properties and High Biodegradability in Seawater

Volant

Balnois

Magueresse

et al. 2021

Preprint

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Commercial poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) were used to prepare microbeads, with diameter ranging from 50 to 100 µm, by an emulsion-evaporation process. The properties of the beads reveal that the elaboration process enables the formation of spherical particles, that the crystallinity of the former polymer is not altered during the process and that the surface roughness of the particles can be tuned by changing the nature of the lateral chain in the PHA structure, in good correlation with its crystalline behavior. The mechanical properties of the different PHA beads are also found to be intimely linked with the crystalline content of the beads, with modulus varying between 1 to 7 GPa. All these properties are also governing the degradation behavior of these materials, as tested under marine environment. With a rapid degradation, similar to cellulose, and a degradation rate correlated with the crystalline content, these results emphasize the interest in developing PHA materials with tunable functions and degradation properties.

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“…Biodegradable PBAT microplastics were degraded faster than polyethylene. Degradation of Polyglycerol maleate microbeads of 30 µm as a biodegradable microplastic was evaluated by Hsieh et al [126] in different aquatic systems such as buffer solution, enzyme solution, deionized water, and seawater. Complete decomposition of microplastics was observed in alkaline solution for 45 min, attributed to surface erosion mechanism.…”

Section: Degradation Based Separationmentioning

confidence: 99%

Microplastics in Aquatic Environments: Recent Advances in Separation Techniques

Hadian-Ghazvini

Torkashvand

2022

Period. Polytech. Chem. Eng.

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Separation and removal of microplastic pollution from aquatic environments as a global environmental issue is classified as one of the major concerns in both water and wastewater treatment plants. Microplastics as polymeric particles less than 5 mm in at least one dimension are found with different shapes, chemical compositions, and sizes in soil, water, and sediments. Conventional treatment methods for organic separation have shown high removal efficiency for microplastics, while the separation of small microplastic particles, mainly less than 100 µm, in wastewater treatment plants is particularly challenging. This review aims to review the principle and application of different physical and chemical methods for the separation and removal of microplastic particles from aquatic environments, especially in water treatments process, with emphasis on some alternative and emerging separation methods. Advantages and disadvantages of conventional separation techniques such as clarification, sedimentation, floatation, activated sludge, sieving, filtration, and density separation are discussed. The advanced separation methods can be integrated with conventional techniques or utilize as a separate step for separating small microplastic particles. These advanced microplastic separation methods include membrane bioreactor, magnetic separation, micromachines, and degradation-based methods such as electrocatalysis, photocatalysis, biodegradation, and thermal degradation.

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Study on the degradation of biodegradable poly (glycerol maleate) (PGM) microbeads

Cited by 10 publications

References 34 publications

Design of Polyhydroxyalkanoate (PHA) Microbeads with Tunable Functional Properties and High Biodegradability in Seawater

Design of Polyhydroxyalkanoate (PHA) Microbeads with Tunable Functional Properties and High Biodegradability in Seawater

Design of Polyhydroxyalkanoate (PHA) Microbeads with Tunable Functional Properties and High Biodegradability in Seawater

Microplastics in Aquatic Environments: Recent Advances in Separation Techniques

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