Thermal and mechanical behaviour of self-curable waterborne hybrid polyurethanes functionalized with (3-aminopropyl)triethoxysilane (APTES)

Sardón, Haritz; Irusta, L.; Santamaría, Pablo Ayala; Fernández‐Berridi, M. J.

doi:10.1007/s10965-012-9956-8

Cited by 39 publications

(13 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thus, both silane and cation influence polymer chain mobility substantially. The increase of cross-linking, caused by an elevated silane content, reduces mobility of chains and limits crystallization of soft segments . Reduction of T m in HPIL-02-BMIM, HPIL-06-BMIM HPIL-02-BMPYRR, and HPIL-06-BMPYRR together with glass transitions in HPIL-02-TBA, HPIL-02-TBP, HPIL-06-TBA, and HPIL-06-TBP suggest a strong interaction between the carboxyl group of the polymeric chain and the cations.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Hybrid Alkoxysilane-Functionalized Urethane-Imide-Based Poly(ionic liquids) as a New Platform for Carbon Dioxide Capture

Bernard¹,

Polesso²,

Cobalchini³

et al. 2017

Energy Fuels

View full text Add to dashboard Cite

Development of new and improvement of the existing materials for carbon dioxide (CO 2 ) capture is an urgent and significant goal for emission reduction. We hereby report synthesis of hybrid urethane-imide-based poly-ILs (HPILs) and their CO 2 capture capacities. The synthesized HPILs were characterized by Fourier transform infred (FTIR), nuclear magnetic resonance (NMR), differential scanning calorimetry (DSC), thermogravimetry analysis (TGA), dynamic mechanical thermal analysis (DMTA), atomic force microscopy (AFM). CO 2 physisorption and reusability were assessed by the pressure-decay technique at a few conditions. Density functional theory calculations were used to identify binding energies between CO 2 and each center of HPILs. Cations of HPILs play an important role in CO 2 physisorption. The impact of the silane content was found to be relatively insignificant. Weakly coordinating cations foster better CO 2 sorption. The best performances were obtained for the tetrabutylammonium-based HPILs (33.1 mg/g in HPIL-02-TBA and 31.7 mg/g in HPIL-06-TBA at 303.15 K and 0.82 bar). HPIL-02-TBA possesses the highest CO 2 sorption capacity out of all reported poly(ionic liquids) thus far and exhibits interesting thermal stability and competitive mechanical properties. Application of HPIL-02-TBA will lead to more robust CO 2 capturing setups.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The second event is attributed to urethane linkages decomposition . The third event is degradation of the imide rings and the organic moiety of APS. , …”

Section: Resultsmentioning

confidence: 99%

Hybrid Alkoxysilane-Functionalized Urethane-Imide-Based Poly(ionic liquids) as a New Platform for Carbon Dioxide Capture

Bernard¹,

Polesso²,

Cobalchini³

et al. 2017

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…As increasing bifunctional monomer 2 concentration increased the number of cross-linking points per chain for a given DP, a higher concentration considerably reduced the swelling behavior. 39,44,45 In addition, swelling ratio increased significantly when PEG with a greater molecular length was used ( Table 1). The results showed that the degree of swelling is a function of the cross-linking density and PEG length.…”

Section: Synthesis Of Cross-linked Polycarbonates and Hydrogel Preparmentioning

confidence: 99%

Broad-Spectrum Antimicrobial Polycarbonate Hydrogels with Fast Degradability

et al. 2015

View full text Add to dashboard Cite

In this study, a new family of broad-spectrum antimicrobial polycarbonate hydrogels has been successfully synthesized and characterized. Tertiary amine-containing eight-membered monofunctional and difunctional cyclic carbonates were synthesized, and chemically cross-linked polycarbonate hydrogels were obtained by copolymerizing these monomers with a poly(ethylene glycol)-based bifunctional initiator via organocatalyzed ring-opening polymerization using 1,8-diazabicyclo[5.4.0]undec-7-ene catalyst. The gels were quaternized using methyl iodide to confer antimicrobial properties. Stable hydrogels were obtained only when the bifunctional monomer concentration was equal to or higher than 12 mol %. In vitro antimicrobial studies revealed that all quaternized hydrogels exhibited broad-spectrum antimicrobial activity against Staphylococcus aureus (Gram-positive), Escherichia coli (Gram-negative), Pseudomonas aeruginosa (Gram-negative), and Candida albicans (fungus), while the antimicrobial activity of the nonquaternized hydrogels was negligible. Moreover, the gels showed fast degradation at room temperature (4-6 days), which makes them ideal candidates for wound healing and implantable biomaterials.

show abstract

“…The synthesis of these materials should be precisely controlled as slight modifications in the formulation or reaction conditions can provoke polymer precipitation [25,26]. In addition, the incorporation of inorganic precursors influences the material properties, increasing the modulus and the resistance of the material but reducing their ductility [27]. Therefore, the effect of different functionalities on the healing process as well as the influence of the incorporation of healing agents in the water dispersion stability and crosslinking abilities of the final material should be considered.…”

Section: Introductionmentioning

confidence: 99%

Autonomic healable waterborne organic-inorganic polyurethane hybrids based on aromatic disulfide moieties

Aguirresarobe¹,

Martin²,

Fernández‐Berridi³

et al. 2017

Express Polym. Lett.

Self Cite

View full text Add to dashboard Cite

Abstract. Aromatic disulfide dynamic structures were incorporated as chain extenders in waterborne organic-inorganic polyurethane hybrids in order to provide autonomic healable characteristics. The synthesis was carried out following the acetone process methodology and the influence of the introduction of the healing agents in the polymer dispersion stability was analyzed. After the crosslinking process at room temperature, organic-inorganic hybrid films, which presented autonomic healing characteristics, were obtained. These features were evaluated by means of stress-strain tests and the films showed repetitive healing abilities. Thus, the optimum healing time at room temperature (25°C) as well as the influence of different parameters in the healing efficiency, such the aromatic disulfide concentration or the physical properties of the polymer matrix were analyzed.

show abstract

Thermal and mechanical behaviour of self-curable waterborne hybrid polyurethanes functionalized with (3-aminopropyl)triethoxysilane (APTES)

Cited by 39 publications

References 24 publications

Hybrid Alkoxysilane-Functionalized Urethane-Imide-Based Poly(ionic liquids) as a New Platform for Carbon Dioxide Capture

Hybrid Alkoxysilane-Functionalized Urethane-Imide-Based Poly(ionic liquids) as a New Platform for Carbon Dioxide Capture

Broad-Spectrum Antimicrobial Polycarbonate Hydrogels with Fast Degradability

Autonomic healable waterborne organic-inorganic polyurethane hybrids based on aromatic disulfide moieties

Contact Info

Product

Resources

About