Green synthesis of biodegradable polyurethane and castor oil-based composite for benign transformation of methylene blue

Sultan, Misbah; Jamal, Zunaira; Jubeen, Farhat; Farooq, Ameeq; Bibi, Ismat; Uroos, Maliha; Chaudhry, Hina; Alissa, Siham A.; Iqbal, Munawar

doi:10.1016/j.arabjc.2021.103417

Cited by 10 publications

(7 citation statements)

References 22 publications

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“…The declinings of T 5% , T 10% , and T max1 of PEG/EG/waterPU were lower than those of XSPU, as fewer components are removed during burying. Generally, the SS appeared to be more degradable than HS during the soil degradation test, which was consistent with the result of the PEG and castor oil‐based polyurethane soil burying test 61 …”

Section: Resultssupporting

confidence: 84%

“…Generally, the SS appeared to be more degradable than HS during the soil degradation test, which was consistent with the result of the PEG and castor oil-based polyurethane soil burying test. 61 F I G U R E 7 Microstructures of foams before and after water immersion test or soil burying test ((a)-(c) OSPU system; (d)-(f) RSPU system; (g)-(i) WSPU system; (j)-(l) CSPU system; (m)-(o) PEG/EG/water/PU system), 34,35 Copyright 2021 John Wiley and Sons, Copyright 2020, Elsevier…”

Section: Thermal Stability Change After Soil Buryingmentioning

confidence: 99%

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Stability and degradation of four agricultural wastes liquefied polyols based polyurethane foams

Zhang

Hori

Takemura

2022

J of Applied Polymer Sci

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Bio-based polyurethane foam has attracted growing attention worldwide due to its advantages of environmental friendliness and wide range of raw materials. However, the stability and degradation ability of the newly prepared foams need to be further explored for their practical application. Four agricultural wastes (XS: oilseed rape straw/OS, rice straw/RS, wheat straw/WS, and corn stover/CS) liquefied polyols were used to replace petroleum polyol for preparing polyurethane foams (XSPU). These bio-based foams were investigated by Thermogravimetric analysis (TGA), Fourier transformed infrared spectroscopy (FTIR), two dimensional correlate infrared spectroscopy (2D-COS IR), water immersion test, soil burying test, and compression test to confirm their stability and degradation properties for applications. XSPU foams displayed excellent thermal stability with heating till to 240 C, appeared to change less than 0.3% in dry weight and contain more hydrogen bonds after immersing in water at 20 C for 14 days. The degradability of XSPU foams was significantly higher than that of petroleum polyol-based PU foam as their soft segments were easier to be decomposed, where the weight loss of XSPU was up to 46.7% after burying in the soil at 23 C and 50% relative humidity for 250 days. The compression recovery ability of these bio-based foams could reach approximately 98.2% after 1 $ 3 times of compression test. Generally, XSPU foams displayed excellent thermal stability, stability in water, degradability in soil, and elastic ability, which showed potential application in fields of insulation, degradable plastic, and elastomer.

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Section: Resultssupporting

confidence: 84%

Section: Thermal Stability Change After Soil Buryingmentioning

confidence: 99%

Stability and degradation of four agricultural wastes liquefied polyols based polyurethane foams

Zhang

Hori

Takemura

2022

J of Applied Polymer Sci

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“…Bioactive moieties can be incorporated to improve the efficiency of the PUR polymers by green synthesis. The number of PUR foams synthesized using different ingredients with polyethylene glycol and castor oil is reported by Sultan et al (Sultan et al, 2021), who studied the degradation efficiency of MB dye and demonstrated a benign degradation process. Even though, bio‐based di‐, tri‐, or poly‐isocyanates can further be used to produce renewable PURs (Konieczny & Loos, 2019).…”

Section: Green‐synthesized Polymer Nanoparticles For Organic Pollutan...mentioning

confidence: 99%

“…Zheng et al have synthesized waterborne polysulfide‐based polyurethane from liquid polysulfide (PSF), polytetramethylene ether glycol (PTMG), isophorone diisocyanate (IPDI), and dimethylolpropionic acid (DMPA) (Zhang et al, 2016). Sultan et al prepared biodegradable polyurethane and castor oil‐based composite forms to remove methylene blue dye with good dye removal efficiency (Sultan et al, 2021).…”

Section: Green‐synthesized Polymer Nanoparticles For Organic Pollutan...mentioning

confidence: 99%

“…Amphiphilic polyurethane (APU) nanoparticle preparation using polyurethane acrylate anionomer (UAA) or poly (ethylene glycol)-modified urethane acrylate (PMUA) precursor chains by emulsification and crosslinking was reported by Tungittiplakon et al, where the adsorption properties can be changed by controlling the hydrophobic segments (Tungittiplakorn et al, 2004). A series of polyurethane (PU), polyethylene glycol (PEG) and castor oil (CO) (ricin) based foams have been prepared by Sultan et al for the removal of methylene blue dye, this prepared PU foam showed a biodegradable nature with efficient catalytic property with good thermal stability and recyclability (Sultan et al, 2021). Green synthesis of soft polyurethane foams was synthesized from polypropylene glycol triol and castor oil with liquefied lignin using microwave technology (Cinelli et al, 2013).…”

Section: Green-synthesized Polyurethane Nanoparticlesmentioning

confidence: 99%

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Biogenic polymer nanoparticles to remove hydrophobic organic contaminants from water

Kathalingam,

Santhoshkumar,

Ramesh

et al. 2023

Water Environment Research

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Soil and water pollution is of significant concern worldwide because of the consequences of environmental degradation and harmful effects on human health. Water bodies are very much polluted from various organic and inorganic pollutants by different human activities, including industrial wastes. Environmental pollution remains high because of urbanization‐induced industrial developments and human lifestyle. It accumulates pollutants in the environment including plants and living organisms. Even mothers’ milk is poisoned because of the uncontrolled, widespread increase in pollution. The discharge levels of organic hydrophobic contaminants in the water and soil are increasing rapidly. This severe pollution must be remediated to upgrade the environment and ensure the safety of human beings. It is vital to eradicate soil and water pollution to guarantee sufficient food and water. Different techniques available to remove the pollutants vary according to the type of pollutants. Hydrophobic contaminants are more dangerous than heavy metals and other pollutants; they cannot be easily removed, requiring special care. Hydrophobic organoxenobiotics released in the environment pose severe contamination in soil and water. Therefore, developing efficient and cost‐effective processes is necessary to remove hydrophobic contaminants from soil and water. With nanoparticle‐mediated remediation techniques, the green‐synthesized nanoparticles exhibit improved performance. This review consolidates reports on the remediation techniques of hydrophobic contaminants, focusing on green‐synthesized remediation agents. The very limited works on green synthesis of polymeric nanoparticles, particularly polyurethane‐based materials for organic contaminants removal demands more attention on this area.

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Effect of functionalizing sawdust as a reinforcement in two types of renewable polyurethane

et al. 2023

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Green synthesis of biodegradable polyurethane and castor oil-based composite for benign transformation of methylene blue

Cited by 10 publications

References 22 publications

Stability and degradation of four agricultural wastes liquefied polyols based polyurethane foams

Stability and degradation of four agricultural wastes liquefied polyols based polyurethane foams

Biogenic polymer nanoparticles to remove hydrophobic organic contaminants from water

Effect of functionalizing sawdust as a reinforcement in two types of renewable polyurethane

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