Volatile Organic Compound-Free Synthesis of Waterborne Poly(hydroxy urethane)–(Meth)acrylic Hybrids by Miniemulsion Polymerization

Bizet, Boris; Grau, Étienne; Cramail, Henri; Asúa, José M.

doi:10.1021/acsapm.0c00657

Cited by 20 publications

(24 citation statements)

References 39 publications

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“…This was attributed to a more homogeneous microstructure of the films, in which the PHU was better distributed among the poly(acrylic) phase, thus avoiding the formation of PHU clusters. [ 57,58 ]…”

Section: Hybrid Nipus: Novel Materials For a Broad Range Of Propertiesmentioning

confidence: 99%

Hybrid Nonisocyanate Polyurethanes (H‐NIPUs): A Pathway towards a Broad Range of Novel Materials

Bizet

Grau

Asúa

et al. 2022

Macro Chemistry & Physics

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The increasing demand for using less toxic and dangerous products has fostered the development of nonisocyanate polyurethanes (NIPUs). Despite several years of progress within the search for these novel materials, they are still facing difficulties to reach the market. This may be due to the low mechanical properties obtained, which can be explained by the difficult access to high molar masses polymers. The combination of NIPUs with other types of polymers, thus forming polymer-polymer hybrid-NIPUs (so called H-NIPUs) can be an interesting alternative for the valorization of NIPUs though. This review describes the latest advancements in the developments of H-NIPUs, with a specific focus on the combination with epoxy, polyacrylic, and silicium-containing polymers. Finally, the emerging field of combining NIPUs with biopolymers is discussed. A specific focus on the synthetic challenges is provided, as well as their resulting influence onto the final material properties, thus showing how the synergistic combination of NIPUs with other polymers can be a promising pathway toward the formation of novel materials.

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Section: Hybrid Nipus: Novel Materials For a Broad Range Of Propertiesmentioning

confidence: 99%

Hybrid Nonisocyanate Polyurethanes (H‐NIPUs): A Pathway towards a Broad Range of Novel Materials

Bizet

Grau

Asúa

et al. 2022

Macro Chemistry & Physics

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“…There is recent literature on the development of VOC-free solvent polyurethane adhesive from vegetable oil, which proved to be less toxic, reducing environmental pollution and risk to human health. These studies also resulted in different types of vegetable oil-based polyurethane adhesives that can replace the petroleum-based one [10].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, vegetal oils are one of the main alternatives to stop using petroleum-derived materials to produce polyols. These chemical substances are one of the basic raw materials for the development of polyurethane [10]. The recent alternatives used as polymer synthesis reagents have many advantages, such as their biodegradability, low toxicity, sustainability, industrial feasibility, cost competitiveness and the design of final polymer properties.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Reactive Polyurethane Hot Melt Adhesives Based on Vegetable Polyols for Footwear Industry

Carbonell-Blasco¹,

Limiñana²,

Ruzafa-Silvestre³

et al. 2022

Polymers

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The aim of this work is to develop sustainable reactive polyurethane hot melt adhesives (HMPUR) for footwear applications based on biobased polyols as renewable resources, where ma-croglycol mixtures of polyadipate of 1,4-butanediol, polypropylene and different biobased polyols were employed and further reacted with 4-4′-diphenylmethane diisocyanate. The different reactive polyurethane hot melt adhesives obtained were characterized with different experimental techniques, such as Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), softening temperature and melting viscosity. Finally, their adhesion properties were measured from T-peel tests on leather/HMPUR adhesives/SBR rubber joints in order to establish the viability of the used biobased polyols and the amount of these polyols that could be added to reactive polyurethane hot melt adhesives satisfactorily to meet the quality requirements of footwear joints. All biobased polyols and percentages added to the polyurethane adhesive formulations successfully met the quality requirements of footwear, being comparable to traditional adhesives currently used in footwear joints in terms of final strength. Therefore, these new sustainable polyurethane adhesives can be considered as suitable and sustainable alternatives to the adhesives commonly used in footwear joints.

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“…For decades, due to the concern of human beings about the limited fossil resources and the warming climate environment, coupled with the government restrictions and the harm to the environment and human body, [1][2][3] the conventional polyurethane coatings, which containing volatile organic compounds (VOCs), have been unable to meet the needs of social development. 4,5 Waterborne polyurethane (WPU) coating, as a green waterborne coating product, 6,7 is widely used for its excellent properties such as environmental protection, non-flammability, high flexibility, and good structural controllability. [8][9][10][11] However, due to the hydrophilic groups and linear structure in its chain, WPU has some inherent disadvantages, such as slow curing efficiency, poor mechanical strength, and water sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of green UV‐curable itaconic acid cross‐linked modified waterborne polyurethane coating

Dong

Ren

Duan

et al. 2021

J of Applied Polymer Sci

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Waterborne polyurethane (WPU) coating, as a kind of green product, can replace solvent polyurethane coating, but its application in the field of coating is limited since its defects such as slow curing efficiency, low strength, and water resistance. In this study, a trifunctional itaconic acid-based crosslinking agent (IHA) was synthesized from itaconic acid and hydroxyethyl acrylate. A series of green UV-curable WPU coatings were prepared by introducing IHA into WPU prepolymer in different proportions (2.5 $ 10 wt.%). IHA posed as crosslinking agent in WPU, which can not only enhance strength, but also accelerate curing rate in WPU coatings. The results demonstrated that the gel content and hydrophobic angle of the modified WPU coating (WPU-IHA) are increased by 25.6% and 34.8 , respectively, indicating a good water resistance.Most notably, due to the increase of crosslinking degree and the decrease of chain mobility, the UV-curable WPU coating shows excellent mechanical properties with 21.9 MPa in tensile strength and a pencil hardness of 5H, which is substantially higher than that of pure WPU coatings. Therefore, the IHA shows great potential to substitute petroleum-based crosslinking agents in the preparation of environmentally friendly UV-curable WPU coatings with high strength and good surface scratch hardness.

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Volatile Organic Compound-Free Synthesis of Waterborne Poly(hydroxy urethane)–(Meth)acrylic Hybrids by Miniemulsion Polymerization

Cited by 20 publications

References 39 publications

Hybrid Nonisocyanate Polyurethanes (H‐NIPUs): A Pathway towards a Broad Range of Novel Materials

Hybrid Nonisocyanate Polyurethanes (H‐NIPUs): A Pathway towards a Broad Range of Novel Materials

Sustainable Reactive Polyurethane Hot Melt Adhesives Based on Vegetable Polyols for Footwear Industry

Preparation and properties of green UV‐curable itaconic acid cross‐linked modified waterborne polyurethane coating

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