Photoreactive hyperbranched urethane acrylates modified with a branched saturated fatty acid

Džunuzović, Enis S.; Tasic, Srba; Bozic, Branislav; Jeremić, K.; Dunjic, Branko

doi:10.1016/j.reactfunctpolym.2006.01.016

Cited by 36 publications

(30 citation statements)

References 28 publications

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“…In this case, the LOI value was used as an indicator to evaluate flame retardancy of a polymer [11]. The LOI value of this modified polyester at 700 • C was 26 and 22, respectively, which were higher than unmodified G 3 HP (LOI value was 19). It was confirmed that the heterocyclic modified HP showed good flame retardancy than HP.…”

Section: Thermal Analysismentioning

confidence: 81%

“…The reason is that polystyrene standard based GPC measurement underestimates the molecular weight of hyperbranched macromolecules because of their different hydrodynamic volumes. However, it can be assumed that the GPC measurements gave reasonable accurate information about the molar mass distribution [19].…”

Section: Molecular Weight and Molecular Weight Distributionmentioning

confidence: 99%

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Phosphorus based indole and imidazole functionalized hyperbranched polyester as antimicrobial surface coating materials

Karpagam

Guhanathan²

2014

Progress in Organic Coatings

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Section: Thermal Analysismentioning

confidence: 81%

Section: Molecular Weight and Molecular Weight Distributionmentioning

confidence: 99%

Phosphorus based indole and imidazole functionalized hyperbranched polyester as antimicrobial surface coating materials

Karpagam

Guhanathan²

2014

Progress in Organic Coatings

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“…The 1 H-NMR spectrum of the HBUA was used to calculate the degree of acrylation (DA) by comparing the signal intensities of the protons of the methylene groups adjacent to the hydroxyl endgroups, the protons of the methylene groups bound to oxygen from the ester groups, and the protons of the acrylate groups [14][15][16] .…”

Section: Characterizationmentioning

confidence: 99%

Synthesis and Characterization of UV-curable Hyperbranched Urethane Acrylate

Lin

Zeng

Youjun

et al. 2008

Polymer-Plastics Technology and Engineering

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The UV-curable hyperbranched urethane acrylate (HBUA) with a multi-hydroxyl functional hyperbranched polyester core was synthesized via a two-step procedure. The products were characterized by size exclusion chromatography, Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, and thermogravimetric analysis. The mechanical properties of UV-cured HBUA films were also investigated. The polydispersity index of HBUA is 2.31 and the endcapped degree of acrylation is 79.8%. The viscosity of HBUA is relatively low in favor of mixing and spreading. The UV-cured films exhibit high hardness and good flexibility.

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“…For example, UAs have been used as adhesives for low-surface-energy polymers such as polyethylene and polypropylene and as adhesives for multi-chip packaging processes [14,15]. Hyperbranched UAs have also been designed to improve coating processes by reducing the viscosity of PU relative to that of unmodified PU [16,17]. The abovementioned plasma discharge, ozone treatment, and UV irradiation methods may damage the surface of the target polymer and thereby degrade the polymer's mechanical and chemical properties.…”

Section: Introductionmentioning

confidence: 99%

Modification of polyurethane by graft polymerization of poly(acrylic acid) for the control of molecular interaction and water compatibility

et al. 2015

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Polyurethane (PU) was graft polymerized with poly(acrylic acid) (PA) to form a PA-grafted PU (UA) series, and a control PU (C) series containing free PA was also prepared for comparison. The grafted PA could be ionized, and an ionized PA-grafted PU (IUA) series was separately prepared. The spectroscopic, thermal, tensile, shape memory, low-temperature flexibility, and water permeability properties of the polymer series were compared. With an increase in the PA content, the T m did not change, but DH m decreased for the UA, IUA, and C series. The T g did not significantly change with the increase in PA content for the UA, IUA, and C series. The tensile strengths of the UA and IUA series sharply increased with the PA content, whereas that of the C series did not. The breaking strain of the UA, IUA, and C series remained the same with the increase in PA content. The shape recovery and shape retention of the PU-PA series remained high after four repeated tests. Finally, the IUA series PU demonstrated better low-temperature flexibility and water compatibility than the unmodified PU.

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Photoreactive hyperbranched urethane acrylates modified with a branched saturated fatty acid

Cited by 36 publications

References 28 publications

Phosphorus based indole and imidazole functionalized hyperbranched polyester as antimicrobial surface coating materials

Phosphorus based indole and imidazole functionalized hyperbranched polyester as antimicrobial surface coating materials

Synthesis and Characterization of UV-curable Hyperbranched Urethane Acrylate

Modification of polyurethane by graft polymerization of poly(acrylic acid) for the control of molecular interaction and water compatibility

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