Preparation and characterization of new biologically active polyurethane foams

Savelyev, Yuri; Веселов, В. В.; Markovskaya, Ludmila; Savelyeva, O. A.; Akhranovich, E.R.; Galatenko, Natalya; Robota, L. P.; Travinskaya, Tamara

doi:10.1016/j.msec.2014.08.068

Cited by 21 publications

(5 citation statements)

References 31 publications

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“…Polyurethane foam (PUF), one of the fundamental polymers, is estimated to be about 5% of the total world consumption of plastics [31,32]. Because polyurethane foam has been applied extensively in modern polymer industry, a large quantity of polyurethane foam wastes are produced every day.…”

Section: Introductionmentioning

confidence: 99%

Polyurethane-derived N-doped porous carbon with interconnected sheet-like structure as polysulfide reservoir for lithium–sulfur batteries

Xiao

Liu

Zhang

et al. 2015

Journal of Power Sources

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Section: Introductionmentioning

confidence: 99%

Polyurethane-derived N-doped porous carbon with interconnected sheet-like structure as polysulfide reservoir for lithium–sulfur batteries

Xiao

Liu

Zhang

et al. 2015

Journal of Power Sources

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“…Potato crust-based PU foam has a wide-angle X-ray diffraction pike in the range of 10-27.5 o . 41,42,43 Syntetic PU foam (S2) showed a diffuse peak located at 18.5 o of 2, in spite of the fact that based hydrogen bonds constructed a small scale ordered domain in the PU matrix. In this case, -NH in the hard segment was hydrogen bonded with the-C=O of the hard segments and the ester -C=O of the glycerin soft segments.…”

Section: 8x-ray Differaction Analysis Of Biyopolyol-contained Foammentioning

confidence: 99%

Preparation and characterization of potato crust-based polyurethane foam-I

GÜRSOY,

ALMA,

ALTUNTAŞ

et al. 2023

International Journal of Chemistry and Technology

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Polyurethanes (PUs) are polymers obtained by reacting diisocyanates with a group of polyols. The first synthesized PU compounds were prepared using petroleum subproduct compounds. In this research study, biomass-containing polyols, which have been studied by other scientists, were prepared using potato crust and polymerized with diisocyanates to produce PU foam. Polyol reactions were carried out using the microwave heating method. Synthesis reactions and structural properties of polyols have been studied in many aspects. The most available polyol was used for PU synthesis. Different formulations were tried for PU synthesis and as a result, PU foam containing nearly 25% starch-polyol was synthesized. The chemical structure of PU polymer was identified by ATR-FTIR spectroscopy and crystallographic properties by WA-XRD analysis. The physical and mechanical properties of PU foam, which is used as a large number of building and construction materials, including thermal insulation materials, were evaluated by comparing them with a commercial PU foam. According to the results of our research, it was detected that the incorporation of biomass into the structure of PU polymer improved its density, heat conduction coefficient, pressure based mechanical properties. PU foam derived from potato waste has a WA XRD-ray diffraction peak between 13.1-28.5o. This data is between 12.5-23o in synthetic commercial foam and has been positively improved in the product we synthesized as a result of combining biomass into the structure. The synthesized biomass-based PU foam can be used as thermal insulation material. Biomass-based PU foam has been synthesized with features that can be used as a thermal insulation material.

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“…The disadvantage of dental absorbent hemostatic cotton prompts a search for other materials, and polyurethane (PU) is recommended as an alternative. PU is a molecular backbone containing urethane (NHCOO) repeating unit, the soft and hard controllable, balanced performance of functional polymer materials, with good biocompatibility, no distortion, allergic reactions, toxicity in line with medical conditions, simple processing, and other advantages 8–11 . In general, PU macromolecules are typically made up of alternating soft and hard segments that are chemically connected to one another along the main chain 12 .…”

Section: Introductionmentioning

confidence: 99%

“…PU is a molecular backbone containing urethane ( NHCOO ) repeating unit, the soft and hard controllable, balanced performance of functional polymer materials, with good biocompatibility, no distortion, allergic reactions, toxicity in line with medical conditions, simple processing, and other advantages. [8][9][10][11] In general, PU macromolecules are typically made up of alternating soft and hard segments that are chemically connected to one another along the main chain. 12 The soft segment, also known as the flexible segment, has low polarity and is mainly composed of polyols containing ester or ether groups on the chain.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and potential application of polyurethane foam as an effective alternative for dental aspiration substrate in liquid absorption/retention and mechanical properties

Guo

Wang

et al. 2023

J of Applied Polymer Sci

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Tooth extraction will leave a wound that may cause blood leakage, and the application of liquid‐absorbing hemostatic cotton pressed on the wound can play the effect of pressure to halt bleeding. Unfortunately, the loose structure of the dental absorbent hemostatic cotton causes local slag to fall. Cotton fiber will impede wound heading and possibly drop into the throat and esophagus, thus impacting the life and health of the patient. Therefore, it is of great significance to prepare a material with toughness and high liquid absorption. The polyurethane foams (PUFs) with different chain extension coefficients synthesized from polyether polyol and diphenylmethane diisocyanate (MDI) with water as the blowing agent have excellent toughness and liquid‐absorbing properties with potential applications. The hydrophilic polyethylene glycol (PEG) is introduced into the polyurethane chain segment to form a synergistic effect with the three‐dimensional foam network structure to absorb more wound exudate. The hydrophobic PUFs can be applied to wounds with less exudate and the hydrophilic PUFs can be applied to chronic wounds with more exudate. The porous structure gives the PUF a strong loading capacity and promotes the wound‐healing effect. The PUFs exhibit good liquid absorption/retention performance in both 0.9 wt% NaCl solution and DI water, especially PUF‐1.10 has an ultimate DI water absorbency of nearly 840%. According to the performance, comparison of the current market commonly used dental absorbent hemostatic cotton; PUF‐1.10 is considered a promising candidate for replacing traditional dental commercial absorbent hemostatic slag‐fall cotton in liquid absorption/retention and mechanical properties.

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Preparation and characterization of new biologically active polyurethane foams

Cited by 21 publications

References 31 publications

Polyurethane-derived N-doped porous carbon with interconnected sheet-like structure as polysulfide reservoir for lithium–sulfur batteries

Polyurethane-derived N-doped porous carbon with interconnected sheet-like structure as polysulfide reservoir for lithium–sulfur batteries

Preparation and characterization of potato crust-based polyurethane foam-I

Synthesis, characterization, and potential application of polyurethane foam as an effective alternative for dental aspiration substrate in liquid absorption/retention and mechanical properties

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