A study of colored siloxane-based polyurethane ionomer

Kuo, Y. M.; Ku, Kim; Lin, Huang; Wang, N. H.; Chwang, C. P.; Chao, D. Y.

doi:10.1002/(sici)1097-4628(19980912)69:11<2097::aid-app1>3.0.co;2-b

Cited by 18 publications

(6 citation statements)

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“…The formed film tended to show the glass transition point of the soft segment, lower strength, and better elongation. Chao et al prepared a PU-based dye ionomer and found that the particle size became larger when the dye concentration was increased, and the formed film became stronger with decreased elongation [14][15][16]. Buruiana et al synthesized waterborne polyurethane with various covalently bonded chromophores [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Optical Performances of a Waterborne Polyurethane-Based Polymeric Dye

Zhang

Liu

2015

International Journal of Polymer Science

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A waterborne polyurethane-based polymeric dye (WPU-CFBB) was synthesized by anchoring 1, 4-bis(methylamino)anthraquinone (CFBB) to waterborne polyurethane chains. The number molecular weight, glass transition temperature, and average emulsion particle size for the polymeric dye were determined, respectively. This polymeric dye exhibited intriguing optical behaviors. The polymeric dye engendered two new absorption bands centered at about 520 nm and 760 nm if compared with CFBB in UV-vis spectra. The 760 nm peak showed hypsochromic shift with the decrease of average particle sizes. The polymeric dye dramatically demonstrated both hypsochromic and bathochromic effects with increasing temperature. The fluorescence intensity of the polymeric dye was much higher than that of CFBB. It was found that the fluorescence intensities would be enhanced from 20°C to 40°C and then decline from 40°C to 90°C. The fluorescence of the polymeric dye emulsion was very stable and was not sensitive to quenchers.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Optical Performances of a Waterborne Polyurethane-Based Polymeric Dye

Zhang

Liu

2015

International Journal of Polymer Science

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“…In the above flask a 0.1573 equivalent of toluene diisocyanate was subsequently added and reacted at 80–85°C for about 2 h to form a NCO‐terminated polyurethane (PU) prepolymer. A 0.034 equivalent of triethylamine was then reacted with this NCO‐terminated PU prepolymer in 80g acetone to form a quaternized NCO‐terminated PU prepolymer 2–8. This quaternized NCO‐terminated PU prepolymer further reacted with hydrolytes of dimethyldimethoxysilane (0.01 equivalent) or dimethyldiethoxysilane (0.01 equivalent), and 170 g water was then added to form the siloxane‐based PU ionomers with approximately 17.5% solids.…”

Section: Methodsmentioning

confidence: 99%

Study of oxygen-permeable polyurethane ionomer. II

Wang

Chao

2000

J. Appl. Polym. Sci.

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Oxygen‐permeable polyurethane ionomers with dimethyldimethoxysilane or dimethyldimethoxysilane have been successfully synthesized at our lab, and their ionomer structures have been proven by infrared spectra. In our previous paper,1 it was found that the amount of oxygen permeated through the film made by a dimethyldichlorosilane polyurethane ionomer increased with increasing the concentration of dimethyldichlorosilane. Presently, our experimental results also indicate that use of dimethyldimethoxysilane or dimethyldiethoxysilane in preparing polyurethane ionomers does substantially raise the amount of oxygen diffusing into the films made by these ionomers. These results suggest that use of dimethyldichlorosilane, dimethyldimethoxysilane, or dimethyldiethoxysilane, with strong hydrophilic property, in making polyurethane ionomer will give better oxygen permeability of siloxane‐based polyurethane ionomers. It is interesting to point out that both tensile strength and the elongation of a siloxane‐based polyurethane ionomer film become weaker as the concentration of dimethyldimethoxysilane or dimethyldiethoxysilane increases. This may be the result of intramolecular interaction of ionomer molecules, coupled with the reduction of the formation of hydrogen bonding between ionomer‐ionomer molecules and between ionomer‐water molecules. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 78: 1932–1938, 2000

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“…In general, two methods are used to improve their dyeing properties. One way is to change the PU structure and increase the number of dyeing sites, thus attracting more dyes and introducing the dye structure into the PU chain to produce a colourful PU polymer 5‐13 . However, polymer modification alters the mechanical properties of the PU polymer, leading to an undesirable result.…”

Section: Introductionmentioning

confidence: 99%

Dyeing properties on polyurethane fibres of novel azo disperse dyes prepared from a four‐component Ugi reaction

Feng

Fang

et al. 2020

Coloration Technology

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A new group of azo disperse dyes prepared by the Ugi four‐component reaction were used to dye polyurethane fibres. It was found that all the new dyes showed excellent fastness properties. One of the new dyes was selected to investigate the adsorption properties on polyurethane fibres, including the dyeing rate, adsorption isotherm, surface adsorption state, colour characteristics and colour fastness. The results were compared with those of CI Disperse Orange 3, which has the same parent structure as the new dye. The results indicated that the new dye has a lower dyeing rate and solubility but a higher affinity and adsorption capacity than the conventional dye due to its larger molecular weight and size. In addition, the aggregation of the new dye on the surface of polyurethane fibres occurred at higher concentrations whereas the conventional dyes aggregated at a lower concentration, resulting in lower colour fastness. This demonstrates that these new dyes derived from the Ugi four‐component reaction are worth developing further and are of great application value for polyurethane fibres.

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A study of colored siloxane-based polyurethane ionomer

Cited by 18 publications

References 1 publication

Synthesis and Optical Performances of a Waterborne Polyurethane-Based Polymeric Dye

Synthesis and Optical Performances of a Waterborne Polyurethane-Based Polymeric Dye

Study of oxygen-permeable polyurethane ionomer. II

Dyeing properties on polyurethane fibres of novel azo disperse dyes prepared from a four‐component Ugi reaction

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