Synthesis, characterization and application of Azadirachta indica juss (neem oil) fatty amides (AIJFA) based polyurethanes coatings: A renewable novel approach

Chaudhari, Ashok B.; Anand, Abhijeet; Rajput, Sandip D.; Kulkarni, Ravindra D.; Gite, Vikas V.

doi:10.1016/j.porgcoat.2013.05.016

Cited by 49 publications

(37 citation statements)

References 17 publications

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“…Flame retardant castor oil based polyols was used to improve the flame retardant performance of polyurethane foams (Zhang et al, , 2014a. Novel silicon-containing vegetable oil and nitrogen-containing vegetable was reported to produce flame retardant polyurethanes and hybrid coating (Ashok et al, 2013;Chaudhari et al, 2013). Functional polymer such as the modified castor-oil-based polyols was synthesized to prepare flame retardant polyurethane foams (Zhang et al, 2014a,b).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and application of phosphaphenanthrene groups-containing soybean-oil-based plasticizer

Jia

Feng

et al. 2015

Industrial Crops and Products

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Section: Introductionmentioning

confidence: 99%

Synthesis and application of phosphaphenanthrene groups-containing soybean-oil-based plasticizer

Jia

Feng

et al. 2015

Industrial Crops and Products

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“…Applications of neem oil in the preparation of polymeric resins have already been documented in previous reports [20][21][22][23]. But the synthesis of various alkyd resins from neem oil using a monoglyceride (MG) route and their utilization for the preparation of PU coatings are reported here for the first time.…”

Section: Introductionmentioning

confidence: 78%

Development of PU Coatings from Neem Oil Based Alkyds Prepared by the Monoglyceride Route

Chaudhari

Kulkarni

Mahulikar

et al. 2015

J Americ Oil Chem Soc

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This work deals with the preparation of alkyd resins from neem oil and their utilization in preparation of polyurethane coatings. Alkyd resins were synthesized by reaction of neem oil monoglycerides with four different divalent acids like phthalic anhydride, maleic anhydride, itaconic acid, and dimer fatty acid. The alkyds formation was studied by determining the acid number of the reaction mixture at regular intervals of time and the extents of the polyesterification reactions were calculated during the formation of alkyds. The structures of synthesized alkyds were confirmed by FT‐IR and 1H‐NMR spectroscopic analysis and also by end group analysis such as hydroxyl and acid values. The synthesized alkyds were reacted with TDI to prepare PU coatings and their performance was compared with PU coatings prepared from a commercial alkyd.

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“…Mahua oil fatty amides (MFA) was synthesized [Figure (a)] from mahua oil as per reported method in literature . Sodium methoxide (0.007 mol) and diethanolamine (0.32 mol) were charged in the reaction flask equipped with a mechanical stirrer, water condenser, thermometer, nitrogen purging assembly, and heating device.…”

Section: Methodsmentioning

confidence: 99%

“…Vegetable oils can also be converted into the derivatives such as alkyd resins and polyols based on alkyds . A number of reports have described the preparation of polyols from different vegetable oils such as soybean, jatropha, cottonseed, canola, castor, linseed, nahar, neem, cashew nut, tobacco seed oils, and their subsequent use in the preparation of PU …”

Section: Introductionmentioning

confidence: 99%

A renewable approach toward the development of mahua oil‐based wood protective polyurethane coatings: Synthesis and performance evaluation

Raychura

Jauhari

Patel³

et al. 2018

J of Applied Polymer Sci

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In the current scenario, the demand for renewable resources is increasing day by day due to numerous factors. In view of this, current work represents the preparation of wood protective polyurethane (PU) coatings from mahua oil. Mahua oil was used as a starting material for the synthesis of fatty amide by base catalyzed aminolysis reaction. The synthesized fatty amide was converted into the polyetheramide polyols by a condensation reaction with bisphenol C. The structure of the synthesized products was confirmed by the attenuated total reflection‐Fourier transform infrared and 1H‐NMR spectroscopy. The synthesized polyetheramide polyols were used as precursors for the preparation of PUs and the prepared PUs were applied on the wood surface as a protective coating. The coating performance of the PUs was evaluated by the measurement of mechanical, thermal, and microbial properties as well as water, solvent, and chemical resistance. The coating performance revealed that mahua oil can be used as a renewable resource for the preparation of wood protective PUs. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46722.

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Synthesis, characterization and application of Azadirachta indica juss (neem oil) fatty amides (AIJFA) based polyurethanes coatings: A renewable novel approach

Cited by 49 publications

References 17 publications

Synthesis and application of phosphaphenanthrene groups-containing soybean-oil-based plasticizer

Synthesis and application of phosphaphenanthrene groups-containing soybean-oil-based plasticizer

Development of PU Coatings from Neem Oil Based Alkyds Prepared by the Monoglyceride Route

A renewable approach toward the development of mahua oil‐based wood protective polyurethane coatings: Synthesis and performance evaluation

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