Synthesis and properties of POSS-containing gallic acid-based non-isocyanate polyurethanes coatings

Liu, Guifeng; Wu, Guomin; Chen, Jian; Huo, Shuping; Jin, Can; Kong, Zhenwu

doi:10.1016/j.polymdegradstab.2015.09.013

Cited by 47 publications

(30 citation statements)

References 42 publications

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“…Gallic acid hasa lso been used for CC synthesis and mixed with epoxidized polyhedralo ligomeric silsesquioxanes (POSSs) and amines to yield PHU/POSS materials. [123]…”

Section: Tanninsmentioning

confidence: 99%

From the Synthesis of Biobased Cyclic Carbonate to Polyhydroxyurethanes: A Promising Route towards Renewable Non‐Isocyanate Polyurethanes

et al. 2019

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“…Gallic acid hasa lso been used for CC synthesis and mixed with epoxidized polyhedralo ligomeric silsesquioxanes (POSSs) and amines to yield PHU/POSS materials. [123]…”

Section: Tanninsmentioning

confidence: 99%

From the Synthesis of Biobased Cyclic Carbonate to Polyhydroxyurethanes: A Promising Route towards Renewable Non‐Isocyanate Polyurethanes

et al. 2019

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“…In order to solve these shortcomings, many groups have put effort into the development of highly efficient catalysts for the synthesis of NIPU as well as studying the structure–performance relationship of NIPU . Besides, the incorporation of fillers, such as silicone backbones, ZnO, graphene oxide and carbon nanotubes, is also carried out to enhance the performance of NIPU.…”

Section: Introductionmentioning

confidence: 99%

Promising approaches to improve the performances of hybrid non‐isocyanate polyurethane

Jiang

et al. 2019

Polymer International

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The performances of hybrid non‐isocyanate polyurethane (NIPU) materials were improved by using promising approaches. For the ring‐opening reaction of cyclic carbonate with excess amine, methanol was selected as solvent to increase the molar mass of NH2‐terminated NIPU pre‐polymer but also caused the formation of urea as a result of eliminating hydrogen bonding between NIPU chains. Meanwhile, another approach was carried out to reduce the content of urea by altering the introduction mode of reactants, along with further increasing the molar mass of the NIPU pre‐polymer. The final hybrid materials were prepared by adding bisphenol‐A diglycidyl ether into the pre‐polymer. The results indicated that the introduction of methanol and the change of the introduction mode of reactants could improve the performance of the hybrid materials. The hybrid material derived from the forward method has optimal performance with a tensile strength of 10.8 MPa, elongation at break of 167%, a glass transition temperature of 49.1 °C and a crosslinking density of 450 mol m−3 as well as presentable thermodynamic stability, ascribed to the high molar mass of the NIPU pre‐polymer, the low urea content and the dense crosslinking network. © 2018 Society of Chemical Industry

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“…The core of POSS is a silica cage consisting of Si-O-Si, and the shell layer consists of organic reactive groups that can be compounded with polymers at the molecular level, thus forming a molecular organic/inorganic hybrid. The unique properties of POSS result in a strong interaction between the organic and inorganic components [43][44][45][46][47][48][49] .…”

Section: Introductionmentioning

confidence: 99%

Polyhedral Oligomeric Silsesquioxane (POSS) as Reinforcing Agent for Waterborne Polyurethane Coatings on Wood

et al. 2019

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Polyhedral oligomeric silsesquioxane (POSS) was added as a reinforcing agent in waterborne polyurethane (WPU)-based coatings to improve their properties. The morphology, structure, thermal stability as well as mechanical properties of the resulting WPU and WPU/POSS hybrid films were investigated. The good compatibility of POSS in the WPU matrices was demonstrated by transmission electron microscopy. Furthermore, Fourier-transform infrared spectroscopy analysis (FTIR) suggested the successful bonding of POSS and WPU matrices. The thermal stability of WPU/POSS hybrids was improved than that of pure WPU according to thermal gravimetric analysis (TGA). The results also revealed the enhancement of the pencil hardness and abrasion resistance of the hybrid films compared with WPU. However, the pull-off adhesion slightly decreased from Grade 0 to Grade 2.

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Synthesis and properties of POSS-containing gallic acid-based non-isocyanate polyurethanes coatings

Cited by 47 publications

References 42 publications

From the Synthesis of Biobased Cyclic Carbonate to Polyhydroxyurethanes: A Promising Route towards Renewable Non‐Isocyanate Polyurethanes

From the Synthesis of Biobased Cyclic Carbonate to Polyhydroxyurethanes: A Promising Route towards Renewable Non‐Isocyanate Polyurethanes

Promising approaches to improve the performances of hybrid non‐isocyanate polyurethane

Polyhedral Oligomeric Silsesquioxane (POSS) as Reinforcing Agent for Waterborne Polyurethane Coatings on Wood

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