Preparation and Application of PEG/PVP Copolymers

Chao, Yin-Chun; Su, Shuenn-Kung; Lin, Ya-Wun; Hsu, Wan-Ting; Huang, Keng‐Shiang

doi:10.1007/s10924-012-0450-5

Cited by 4 publications

(3 citation statements)

References 22 publications

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“…For example, polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) are biodegradable polymers that can form eco-friendly additives for removing dyes. 1 PEG also combines with hydroxypropyl methylcellulose (HPMC) and chitosan (CS) to create porous hydrogels that regulate heat. 2 Poly(methyl methacrylate) (PMMA) is a transparent polymer that can coat flexible solar cells and act as a separator and electrolyte for batteries and supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

“…Polymers play a vital role in the chemical industry, offering a variety of materials with distinct properties that suit the demands of different sectors. For example, polyethylene glycol (PEG) and polyvinylpyrrolidone (PVP) are biodegradable polymers that can form eco-friendly additives for removing dyes . PEG also combines with hydroxypropyl methylcellulose (HPMC) and chitosan (CS) to create porous hydrogels that regulate heat .…”

Section: Introductionmentioning

confidence: 99%

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Strategy of Coupling Artificial Intelligence with Thermodynamic Mechanism for Predicting Complex Polymer Viscosities

Wang,

Sadowski,

2024

ACS Sustainable Chem. Eng.

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With the environmental protection requirements brought about by the large-scale application of polymers in industrial fields, understanding the viscosities of polymers is becoming increasingly important. The different arrangements and crystallinity of the polymers make their viscosities difficult to calculate. To address this challenge, new strategies based on artificial intelligence algorithms are proposed. First, the strategy trains three artificial intelligence algorithms [extreme gradient boosting (XGBoost), convolutional neural network (CNN), and multilayer perceptron (MLP)] based on molecular descriptors of the polymer molecular properties. Next, the PC-SAFT parameters are input into the XGBoost and CNN algorithms as molecular descriptors representing the thermodynamic properties of the polymer to improve the accuracy of the algorithm prediction results. Subsequently, the Molecular ACCess Systems chemical fingerprinting was combined with the XGboost algorithm and CNN algorithm to further improve the accuracy of predicting viscosities. The XGboost algorithm was identified as the best predictive algorithm for predicting the viscosities of the polymer in different states. This discovery is expected to provide effective information for screening polymers for applications in medicine and the chemical industry.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Strategy of Coupling Artificial Intelligence with Thermodynamic Mechanism for Predicting Complex Polymer Viscosities

Wang,

Sadowski,

2024

ACS Sustainable Chem. Eng.

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“…PVP is becoming a very popular component of various polymer blends with a huge potential of usage in many industries. It can be combined with substances such as starch [11], carboxymethylcellulose [12], polyvinylalcohol [10], caprolactone [13,14], chitosan [15], polyethyleneglycol [16] or polydimethylsiloxane [17]. The study by de Paula et al deals with polymer films prepared from PVP and polylactic acid (PLA) [18]; this material finds its application in medicine and in biotechnology.…”

Section: Introductionmentioning

confidence: 99%

PVP Based Materials: Biodegradation in Different Environments

Vaňharová

Julinová

Slavík

2017

Ecological Chemistry and Engineering S

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The research deals with biodegradation of films prepared from polyvinylpyrrolidone and polylactic acid (PVP/PLA). Biodegradation of PVP/PLA films was supported by the following additives: 1-methyl-2-pyrrolidone, 1-octyl-2-pyrrolidone, acrylamide and N-acetyl-L-phenylalanine according to the previous study. The films were prepared by a solvent casting technique. Biodegradation was observed using the respirometric method in different environments. The films subjected to biodegradation were analyzed by scanning electron microscopy and Fourier transform infrared spectroscopy. It was found that the films are substantially degraded, but not in the biological way; PVP was quickly removed in presence of water because of its easy solubility. In contrast, this fact could support biodegradation of PLA, which becomes more available for microorganisms when PVP leaves PLA matrix.

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Leveling effects of ammonium salts on thermal stabilities of polyethylene glycols

2013

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In this work, the thermal stabilities of a series of polyethylene glycols (PEG 4000, 6000 and 10000) were investigated after compositing with different kinds of inorganic salts, such as ammonium molybdate tetrahydrate (AMT), NH4VO3, (NH4)2SO4, NH4NO3, Na2SO4, Na2MoO4. It was first observed that all the ammonium salts exerted leveling effects for the thermal stabilities of the PEGs. In other words, the presence of the ammonium salts caused the occurrence of the maximum decomposition rates of the PEGs with the same repeat sequence but different chain lengths at almost the same temperatures. Leveling effects were defined by three parameters: leveling spans, leveling degrees and dispersion degrees of leveling. Further experiments revealed that leveling effects also occur in similar types of polymers: polypropylene glycols (PPG 2000, 3000 and 4000). A series of independent experiments including Fourier transformation infrared spectroscopy, Raman spectroscopy, differential scanning calorimetry, time-of-flight mass spectrometry, conductivity and field-emission scanning electron microscopy were performed to explore the origin of leveling effects. We consider that the interaction between inorganic ions and polymer molecules and the Hofmeister effect of ions in solution are two important factors affecting the stability of salt–polymer composites, because they can contribute to decrease the interaction between the polymer chains, leading to changes in the conformation and pyrolysis mode of polymers. We believe that the finding of leveling effects would be significant for both basic and applied research of soft matter.

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Preparation and Application of PEG/PVP Copolymers

Cited by 4 publications

References 22 publications

Strategy of Coupling Artificial Intelligence with Thermodynamic Mechanism for Predicting Complex Polymer Viscosities

Strategy of Coupling Artificial Intelligence with Thermodynamic Mechanism for Predicting Complex Polymer Viscosities

PVP Based Materials: Biodegradation in Different Environments

Leveling effects of ammonium salts on thermal stabilities of polyethylene glycols

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