Characterization of degradation behavior of poly(glycerol maleate) films in various aqueous environments

Wang, Wei-Hsuan; Huang, Chieh-Wei; Tsou, Erh-Yeh; Ao-Ieong, Wei-Sam; Hsu, Hui‐Ching; Wong, David Shan Hill; Wang, Jane

doi:10.1016/j.polymdegradstab.2020.109441

Cited by 12 publications

(10 citation statements)

References 31 publications

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“…After initial attachment of microorganisms to material surfaces, they can form extensive biofilms [ 20 ] and may consequently alter the physicochemical properties of plastic film, including changes in functional groups, hydrophobicity/hydrophilicity, crystallinity, surface morphology, and molecular weight distribution. Measurements have indicated that film surfaces become more hydrophilic after microorganism attachment [ 21 ]; however, polymer hydrolyzes at a rate much faster than the degradation triggered by microorganisms [ 22 ]. Plastic surface topography can be modified after bacterial inoculation, and pits and cavities have been observed on the polymer surface [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Greater Biofilm Formation and Increased Biodegradation of Polyethylene Film by a Microbial Consortium of Arthrobacter sp. and Streptomyces sp.

et al. 2020

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The widespread use of polyethylene (PE) mulch films has led to a significant accumulation of plastic waste in agricultural soils. The biodegradation of plastic waste by microorganisms promises to provide a cost-effective and environmentally-friendly alternative for mitigating soil plastic pollution. A large number of microorganisms capable of degrading PE have been reported, but degradation may be further enhanced by the cooperative activity of multiple microbial species. Here, two novel strains of Arthrobacter sp. and Streptomyces sp. were isolated from agricultural soils and shown to grow with PE film as a sole carbon source. Arthrobacter sp. mainly grew in the suspension phase of the culture, and Streptomyces sp. formed substantial biofilms on the surface of the PE film, indicating that these strains were of different metabolic types and occupied different microenvironments with contrasting nutritional access. Individual strains were able to degrade the PE film to some extent in a 90-day inoculation experiment, as indicated by decreased hydrophobicity, increased carbonyl index and CO2 evolution, and the formation of biofilms on the film surface. However, a consortium of both strains had a much greater effect on these degradation properties. Together, these results provide new insights into the mechanisms of PE biodegradation by a microbial consortium composed of different types of microbes with possible metabolic complementarities.

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Section: Introductionmentioning

confidence: 99%

Greater Biofilm Formation and Increased Biodegradation of Polyethylene Film by a Microbial Consortium of Arthrobacter sp. and Streptomyces sp.

et al. 2020

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“…As a result, acceleration degradation conditions are used however, for this to be valid, it is essential to know the degradation mechanisms involved and thus both physicochemical and mechanical test data are required [18]. Wang et al [19] have studied the degradability of poly (glycerol maleate) (PGM) in various aqueous environments to evaluate the influence of salinity and microorganisms on the degradation. PGM films are immersed in reverse osmosis water, fresh water, tap water, artificial seawater, and seawater at 25 °C for 56 days.…”

Section: Introductionmentioning

confidence: 99%

Hygrothermal deterioration in carbon/epoxy and glass/epoxy composite laminates aged in marine-based environment (degradation mechanism, mechanical and physicochemical properties)

Ghabezi

Harrison

2022

J Mater Sci

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One of the major challenges in off-shore tidal and wave energy devices is the ageing of these structures in the hostile marine environment, which limits their operating life. In this research, mechanical properties of aged glass/epoxy and carbon/epoxy composite specimens including tensile strength, Young’s modulus, flexural strength, and shear strength, following immersion in a representative accelerated marine degradation environment (artificial seawater, with 3.5% salinity at room temperature and 60 °C) have been investigated. The microstructure and physicochemical characterization of the aged samples were assessed via microscopic imaging, micro-CT scanning and differential scanning calorimetry. The degradation phenomenon was apparent in the change of mechanical properties and microstructure of composite laminates (micro-cracks and debonding between matrix and fibre). Generally, the ageing process had a more severe effect on tensile and shear strengths of glass/epoxy samples than those of carbon/epoxy specimens. Reversely, the results of bending tests of carbon/epoxy composites showed more drop-in flexural properties than glass/epoxy samples. The results revealed that degradation mechanisms continue even after reaching the saturation point in composite materials. The achievements of this research present a good understanding of the effect of degradation of composite materials in salt water to deal with their application in real service environment.

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“…However, PGM degrades completely with 100% mass loss in about 35 and 28 days in tap water and artificial seawater. 29 Hsieh et al further elicited the application of microbeads in personal care products as a replacement for non-biodegradable polymer microbeads such as polyethylene, polypropylene and poly(methyl methacrylate), etc. 30 They outline complete degradation of these PGM microbeads in alkaline solution (pH 10) in about 45 min., 59% and 36% degradation in acidic solution (pH 4) and synthetic seawater after 30 days.…”

Section: Introductionmentioning

confidence: 99%

An update on the future prospects of glycerol polymers

Goyal

Hernández

Cochran

2021

Polymer International

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Glycerol, a water-soluble polyol, is currently used in a wide variety of markets, e.g. as a sweetener in drinks, as an additive in the food and cosmetics industry, or as an antifreeze agent, to name a few. The blooming biodiesel production has created an excess supply of glycerol by-product. Researchers all around the world are actively exploring strategies to utilize this cheap and abundantly available biobased molecule. To date, glycerol-based polymers have only been examined extensively for use in biomedical applications; however, the use of biobased crude glycerol is not viable for such applications due to the presence of impurities such as methanol and residual fatty acids from the biodiesel production process. However, the increased volumes of glycerol generated from biodiesel production have stimulated the research on its use in various other industrial applications such as the production of commodity chemicals, polymers etc. In this article, we summarize some of the efforts to valorize glycerol for polymeric applications such as polyurethanes, polyhydroxyalkanoates and adhesives.

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Characterization of degradation behavior of poly(glycerol maleate) films in various aqueous environments

Cited by 12 publications

References 31 publications

Greater Biofilm Formation and Increased Biodegradation of Polyethylene Film by a Microbial Consortium of Arthrobacter sp. and Streptomyces sp.

Greater Biofilm Formation and Increased Biodegradation of Polyethylene Film by a Microbial Consortium of Arthrobacter sp. and Streptomyces sp.

Hygrothermal deterioration in carbon/epoxy and glass/epoxy composite laminates aged in marine-based environment (degradation mechanism, mechanical and physicochemical properties)

An update on the future prospects of glycerol polymers

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