Synthesis and degradation profile of cast films of PPG-DMPA-IPDI aqueous polyurethane dispersions based on selective catalysts

Cakić, Suzana; Stamenkovic, Jakov; Djordjević, Dragan; Ristić, Ivan

doi:10.1016/j.polymdegradstab.2009.07.015

Cited by 70 publications

(28 citation statements)

References 18 publications

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“…Poly ( Water-based PUD from PPG with selective catalyst were prepared using the prepolymer method has been described in detail in our previously work (Cakić et al, 2009). …”

Section: Methodsmentioning

confidence: 99%

“…Water was added to the mixture and stirred to obtain dispersion of organic phase in water. The waterborne PUD contains 40 wt% solids (Cakić et al, 2009). Films were prepared by casting the waterborne dispersions on leveled surfaces and allowing them to dry at room temperature, for 7 days, and then at 60 o C, for 12h (Coutinho, 1996(Coutinho, , 2003.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Thermal Analysis of Polyurethane Dispersions Based on Different Polyols

Cakić¹,

Ristić²,

Ristić³

2012

Polyurethane

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“…Poly ( Water-based PUD from PPG with selective catalyst were prepared using the prepolymer method has been described in detail in our previously work (Cakić et al, 2009). …”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Thermal Analysis of Polyurethane Dispersions Based on Different Polyols

Cakić¹,

Ristić²,

Ristić³

2012

Polyurethane

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“…Interestingly, the IPDI monomer, eluting at 10.86 min is identified as well. The formation of new compounds resulting from the pyrolysis decomposition process of polyurethane dispersion (PUD) involving IPDI resin could reasonably explain the presence of such strong peaks [17,18]. Indeed, due to the water solubility of HDI crosslinkers, cycloaliphatic diisocyanates such as IPDI are favored to make PUDs [6].…”

Section: Activated Systemsmentioning

confidence: 99%

Polyurethane coatings in twentieth century outdoor painted sculptures. Part II: comparative study of four systems by means of Py-GC/MS

et al. 2017

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Because PU coatings offer a compromise between aesthetic and performance expectations, unachievable with other types of industrial paints, they are currently recognized as the most appropriate option to coat sculptures intended for an outdoor setting. However, the PU class includes various systems, such as two package solvent-borne, two package water-borne, one package water-borne and fluoropolymer polyurethanes, which possess very different properties. 115 reference samples of PU coatings were investigated by means of Py-GC/MS, in order to outline the differences and the similarities existing, in terms of composition, between the major PU systems used for creating as well as for conserving modern painted outdoor sculptures. The Py-GC/MS study of an extended number of reference samples showed that the composition of equivalent PU systems strongly varies depending on the product line and the manufacturer. Furthermore the comparison of all the produced pyrograms allowed defining characteristic marker compounds helpful to discriminate specific PU paint systems.

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“…The effects of various factors such as the structure and content of diisocyanates, polyols, hydrophilic groups and chain extenders on the preparation and properties of PU dispersions have been studied extensively [8][9][10][11][12]. Additionally, thermal phase separation and the physical properties of PU prepared from different polyols have also been investigated [13,14].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of UV-curable polycarbonate diols (PCDL)-based polyurethane acrylate for negative photoresist

Liu

Zheng

et al. 2015

Polym. Bull.

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Two kinds of UV-curable polyurethane acrylates (PCDL-H-PUA and PCDL-P-PUA) were synthesized starting with polycarbonate diols (PCDL), isophorone diisocyanate and dimethylolpropionic acid and terminated with hydroxyethyl methacrylate or pentaerythritol triacrylate to impart mono-methacrylate or tri-acrylate end-group functionality, respectively. The structures and properties of the products were characterized by Fourier transform infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, gel permeation chromatography and thermogravimetric analysis. The average molecular weights were between 7500 and 9300 g/mol, and the thermal properties of the products were excellent. The influence of the functionality of the end-capping functional group on the UV-curing behavior was investigated using real-time spectroscopy. Results showed that curing rate and conversion of PCDL-P-PUA were higher than those of PCDL-H-PUA, and the final double bond conversion of the polymers reached 95 %. PCDL-H-PUA and PCDL-P-PUA were applied to negative photoresists as the main film resin. The resolution of the optimal photoresist reached 40 lm.

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Synthesis and degradation profile of cast films of PPG-DMPA-IPDI aqueous polyurethane dispersions based on selective catalysts

Cited by 70 publications

References 18 publications

Thermal Analysis of Polyurethane Dispersions Based on Different Polyols

Thermal Analysis of Polyurethane Dispersions Based on Different Polyols

Polyurethane coatings in twentieth century outdoor painted sculptures. Part II: comparative study of four systems by means of Py-GC/MS

Synthesis of UV-curable polycarbonate diols (PCDL)-based polyurethane acrylate for negative photoresist

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