Synthesis and characterization of new quinolinyl phenol based polybenzoxazine: thermal stability, hydrophobicity and corrosion resistant properties

Chinnamuthu, Roja; Madesh, Priyanka; Arumugam, Hariharan; Krishnasamy, Balaji; Latha, Govindraj; Jaganathan, Mallika; Alagar, Muthukaruppan

doi:10.1080/1023666x.2022.2143758

Cited by 2 publications

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“…Recently, our research group also made several attempt to reduce the cure temperature and other enhanced properties. 5,[25][26][27][28][29] In light of this work, a novel urea core substituted pyrimidinone bisphenol (PBU) was synthesized and utilized for the preparation of benzoxazines in an effort to lower the polymerization temperature of these compounds as much as feasible, as well as to improve their thermal stability, and water interface angle studies. Furthermore, the influencing effect of dielectric properties of the benzoxazines when incorporated with two different nature of reinforcements such as palm flower ash silica and boron doped graphitic nitride for assess their low-k and high-k applications.…”

Section: Introductionmentioning

confidence: 99%

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Boron doped graphitic carbon nitride (BN‐g‐C₃N₄) and palm flower ash reinforced pyrimidinone core‐based polybenzoxazine composites for low‐k and high‐k applications

et al. 2023

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The present work provides a facile process route for the syntheses of pyrimidinone‐based benzoxazines by using stoichiometric quantities of pyrimidinone bisphenol (PBU) and paraformaldehyde, which are separately reacted with various types of amines under suitable experimental conditions. The molecular structure, curing characteristics, thermostability, hydrophobic behavior, and dielectric properties were analyzed using appropriate analytical methods. The polymerization temperature (Tp) of monomers such as PBU‐oda, PBU‐cha, PBU‐ffa, PBU‐a, and PBU‐fa was determined by differential scanning calorimetry (DSC), and the Tp values were noted at 205, 198, 203, 218, and 240°C, respectively. The percentage carbon residue at 850°C for poly(PBU‐oda), poly(PBU‐cha), poly(PBU‐ffa), poly(PBU‐a), and poly(PBU‐fa) were analyzed using thermogravimetric analysis (TGA). The water interface angle values for poly(PBU‐oda), poly(PBU‐cha), poly(PBU‐ffa), poly(PBU‐a), and poly(PBU‐fa) was found to be 141°, 134°, 142°, 136°, and 142°, respectively. The results from the dielectric studies indicate that the benzoxazines (PBU‐ffa and PBU‐a) composites reinforced with palm flower silica (PF‐SiO2) and boron nitride‐g‐C3N4 (BN‐g‐C3N4) were found to be suitable for low and high dielectric applications. From these diverse studies, it can be determined that pyrimidinone‐based benzoxazines to be utilized as high‐performance products in the form of encapsulants, potting agents, and composites for automotive and microprocessor applications.Highlights Pyrimidinone core bisphenol has developed through the efficient method. New pyrimidinone core bisphenol based benzoxazine resins have been developed. BN‐g‐C3N4 filled polybenzoxazine composites have prepared for high‐k applications. Palm flower ash filled polybenzoxazine composites have prepared low‐k applications. Thermal and morphological behavior of composites were studied.

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Section: Introductionmentioning

confidence: 99%

“…This work aims to overcome this limitation by reducing the polymerization temperature of benzoxazines. Recently, our research group also made several attempt to reduce the cure temperature and other enhanced properties 5,25–29 …”

Section: Introductionmentioning

confidence: 99%

Boron doped graphitic carbon nitride (BN‐g‐C₃N₄) and palm flower ash reinforced pyrimidinone core‐based polybenzoxazine composites for low‐k and high‐k applications

et al. 2023

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Multifunctional nitrogen rich benzoxazines with imine moiety: Structural insights, hydrophobic and corrosion‐resistant applications

Krishnan,

Madesh,

Krishnasamy

et al. 2024

J of Applied Polymer Sci

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Hybrid hydroxynaphthaldehyde (HNA) based benzoxazine products with good thermal stability, anticorrosion and hydrophobic properties have been synthesized. Nitrogen rich Schiff base core bifunctional benzoxazines (HNAG‐f and HNBG‐f) and trifunctional benzoxazine (HNMA‐f) have been synthesized using amino‐derivatives and paraformaldehyde through Mannich condensation. The structural confirmation of benzoxazines was studied using ATR‐FTIR, HRMS and 1H‐NMR spectral analyses. The polymerization (curing) temperature and thermal stability were assessed by DSC and TGA respectively. Data from DSC and TGA studies infer that HNMA‐f possesses the lowest curing temperature of 213°C and the highest thermal stability with a char yield of 41% at 850°C respectively when compared to those of the polybenzoxazines synthesized. The values of LOI and HRI calculated using TGA data infer that all the polybenzoxazines can be used for self‐extinguishing, flame retardant and heat resistant applications. Corrosion results indicated that these benzoxazines exhibit the surface protection efficiency of 99% towards mild steel surfaces. The polybenzoxazines exhibited hydrophobic property with a water contact angle value (WCA) of above 140°. The value of WCA did not vary much on exposing the polybenzoxazine coating to chemical and UV treatments suggesting that the polybenzoxazine coatings are durable. Data from different studies infer that these benzoxazines can be used in the form of adhesives, coatings, and thermally stable, anticorrosive, and hydrophobic and UV resistant applications.

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Synthesis and characterization of new quinolinyl phenol based polybenzoxazine: thermal stability, hydrophobicity and corrosion resistant properties

Cited by 2 publications

References 45 publications

Boron doped graphitic carbon nitride (BN‐g‐C₃N₄) and palm flower ash reinforced pyrimidinone core‐based polybenzoxazine composites for low‐k and high‐k applications

Boron doped graphitic carbon nitride (BN‐g‐C₃N₄) and palm flower ash reinforced pyrimidinone core‐based polybenzoxazine composites for low‐k and high‐k applications

Multifunctional nitrogen rich benzoxazines with imine moiety: Structural insights, hydrophobic and corrosion‐resistant applications

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Synthesis and characterization of new quinolinyl phenol based polybenzoxazine: thermal stability, hydrophobicity and corrosion resistant properties

Cited by 2 publications

References 45 publications

Boron doped graphitic carbon nitride (BN‐g‐C3N4) and palm flower ash reinforced pyrimidinone core‐based polybenzoxazine composites for low‐k and high‐k applications

Boron doped graphitic carbon nitride (BN‐g‐C3N4) and palm flower ash reinforced pyrimidinone core‐based polybenzoxazine composites for low‐k and high‐k applications

Multifunctional nitrogen rich benzoxazines with imine moiety: Structural insights, hydrophobic and corrosion‐resistant applications

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Product

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Boron doped graphitic carbon nitride (BN‐g‐C₃N₄) and palm flower ash reinforced pyrimidinone core‐based polybenzoxazine composites for low‐k and high‐k applications

Boron doped graphitic carbon nitride (BN‐g‐C₃N₄) and palm flower ash reinforced pyrimidinone core‐based polybenzoxazine composites for low‐k and high‐k applications