Synthesis and properties of UV-curable hyperbranched polyurethane acrylate oligomers containing carboxyl groups

Han, Wei; Lin, Baoping; Yang, Hong; Zhang, Xueqin

doi:10.1007/s00289-011-0597-6

Cited by 19 publications

(10 citation statements)

References 27 publications

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“…The hydroxyl value of G1‐OH and G2‐OH is 583.44 and 302.94, respectively. It is evident that the hydroxyl value of hyperbranched polyesters close to their theoretical ones 24. The results of element analysis of N, C, and H in G1‐OH and G2‐OH were shown in Table I.…”

Section: Resultssupporting

confidence: 52%

“…It is evident that the hydroxyl value of hyperbranched polyesters close to their theoretical ones. 24 The results of element analysis of N, C, and H in G1-OH and G2-OH were shown in Table I. The element contents of N, C and H in G1-OH are 7.12, 51.16, and 8.25%, and the corresponding values of G2-OH are 8.16, 52.04, and 8.20%, respectively.…”

Section: Preparation Of G1-oh and G2-ohmentioning

confidence: 96%

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Synthesis of UV‐curable hyperbranched polyurethane (meth)acrylate oligomers via thiol‐ene “click” chemistry

Han

Lin

Yang

et al. 2012

J of Applied Polymer Sci

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First, the second‐generation hyperbranched poly(amine‐ester) (G2‐OH) was successfully prepared by thiol‐ene “click” chemistry. Subsequently, a series of photosensitive hyperbranched oligomers (G2‐ORs) were synthesized by facile modifications of the G2‐OH with acryloyl chloride, methacryloyl chloride, IPDI‐HEA, and IPDI‐HEMA, respectively. The structures of hyperbranched oligomers were characterized by element analysis, FT‐IR, 1H NMR, GPC and viscosity measurement. It was shown that these synthesized oligomers have narrow molecular weight distribution and low intrinsic viscosity at 30°C. UV–vis spectra results showed that the G2‐ORs had sharp absorption bands at around 202 nm. The results of photosensitivities measurement indicated that the G2‐Macr shows the highest photosensitive than other hyperbranched oligomers in the absence of photoinitiator. In addition, these UV‐cured photosensitive G2‐ORs had good thermal properties. The solubilities of the synthesized hyperbranched oligomers were also examined. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013

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Section: Resultssupporting

confidence: 52%

Section: Preparation Of G1-oh and G2-ohmentioning

confidence: 96%

Synthesis of UV‐curable hyperbranched polyurethane (meth)acrylate oligomers via thiol‐ene “click” chemistry

Han

Lin

Yang

et al. 2012

J of Applied Polymer Sci

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“…These peaks are due to the surface Plasmon resonance absorption of the silver metal particles, as Ag nanoparticles are known to exhibit intense Plasmon absorption band in such visible region. [17,18] From above analysis, it can be concluded that the Cu-Ag and Cu-Ag@Ag particles have been successfully synthesized. Figure 3 shows the XRD spectral analysis of Cu, Ag, AgCu and Ag-Cu@Ag particles.…”

Section: Uv-visible Spectramentioning

confidence: 93%

Synthesis of Cu-Ag@Ag particles using hyperbranched polyester as template

Han

2015

Electron. Mater. Lett.

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“…To overcome this disadvantage, the present paper uses the unique hyperbranched polymer (H10) and UV-curing technology to improve the water resistance of waterborne polyurethane. 2,5,24 The water absorption of UV-cured films is shown in Table 3. As seen in Table 3, the water absorption of UV-cured films decreases with increasing double bond concentration (the content of TDI-HPA),WHPUD 3.0-0.5 > WHPUD 3.0-1.0 > WHPUD 3.0-1.5.…”

Section: Water Resistancementioning

confidence: 99%

“…Recently, waterborne coatings using UV-curing technology have gained increasing interest because they can decrease air pollution, reduce the risk of fire, improve aspects of occupational health and safety, lower energy consumption, and have high curing speed. [1][2][3] Polyurethanes have been popularly applied in organic coatings for their prominent performance. However, ordinary polyurethanes are difficult to disperse in water.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of a novel UV-curable waterborne hyperbranched polyurethane

2013

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A series of ultraviolet (UV)-curable waterborne hyperbranched polyurethane dispersions (WHPUDs) have been successfully synthesized by modifying the hyperbranched polyester H10, which was prepared using pentaerythritol as a core molecule and dimethylolpropionic acid as monomers, with succinic anhydride, toluene diisocyanate (TDI), and hydroxypropyl acrylate (HPA). The H10 was characterized by 1 H nuclear magnetic resonance spectroscopy and matrix-assisted laser desorption/ionization time of flight mass spectrometry. The properties of the WHPUDs with different content of succinic anhydride and TDI-HPA have been investigated by measuring the stability, the particle size, and the rheological behavior. The effects of the content of succinic anhydride and TDI-HPA were studied in terms of UV-curing rate, water resistance, and thermogravimetric behaviors of WHPUD coatings. The WHPUDs showed good appearance, particle size, viscosity, and storage stability. The WHPUD films showed superior photosensitivity and the percent conversion of C=C bonds reached about 80% when the radiation time was 50 s. Moreover, the UV-cured films had good water resistance and thermostability, which can benefit a waterborne polyurethane resin for waterborne coatings.

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Synthesis and properties of UV-curable hyperbranched polyurethane acrylate oligomers containing carboxyl groups

Cited by 19 publications

References 27 publications

Synthesis of UV‐curable hyperbranched polyurethane (meth)acrylate oligomers via thiol‐ene “click” chemistry

Synthesis of UV‐curable hyperbranched polyurethane (meth)acrylate oligomers via thiol‐ene “click” chemistry

Synthesis of Cu-Ag@Ag particles using hyperbranched polyester as template

Synthesis and properties of a novel UV-curable waterborne hyperbranched polyurethane

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