Sesamol-based polybenzoxazines for ultra-low-<i>k</i>, high-<i>k</i> and hydrophobic coating applications

Mohamed, Mydeen K; Arumugam, Hariharan; Krishnasamy, Balaji; Alagar, Muthukaruppan

doi:10.1039/d3nj00531c

Cited by 16 publications

(1 citation statement)

References 67 publications

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“…Notably, fluorine atoms play a more significant role in decreasing surface free energy and enhancing hydrophobicity compared to longer alkyl chains, as evidenced by the descending order of WCA values in sesamol-based PBZ: S-tfma (163°), S-fa (162°), S-oda (160°), S-dda (158°), and S-a (158°). 51 Similarly, thymol-based PBZs synthesized by Mohamed Mydeen K et al demonstrate that PBZ containing trifluoride (poly(T-t)) exhibits the highest WCA (163°), surpassing poly(T-l), poly(T-s), poly(T-a), and poly(T-f), indicative of super-hydrophobic behavior (Fig. 3(b1) and (b2)).…”

Section: Designed Pbz For Anticorrosion Coatingsmentioning

confidence: 84%

Advancing coatings with polybenzoxazines: insights into molecular design, synthesis, and modification

Song,

Liang,

Cao

et al. 2024

J. Mater. Chem. C

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Section: Designed Pbz For Anticorrosion Coatingsmentioning

confidence: 84%

Advancing coatings with polybenzoxazines: insights into molecular design, synthesis, and modification

Song,

Liang,

Cao

et al. 2024

J. Mater. Chem. C

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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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Bio‐based benzoxazine composites derived from magnolol: Promising solution for sustainable alternatives for dielectric and superhydrophobic applications

Madesh,

Krishnasamy,

Arumugam

et al. 2024

Polymer Composites

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To alleviate the environmental hazard and minimize the practice of utilizing fossil fuel‐based precursors in the production of benzoxazines, sustainable bio‐phenol precursors namely magnolol and bio‐based amine furan‐2yl‐methanamine have been utilized to synthesize bio‐benzoxazine and was cured and characterized. The curing temperature of the synthesized bio‐benzoxazine monomer was found to be 216°C. Utilizing the carbon obtained from two different bio‐sources namely, chicken feather and cashew nut shell cake bio‐polybenzoxazine composites were prepared. The char yield of bio‐carbon reinforced bio‐polybenzoxazine composites was enhanced to 65% compared to that of neat polybenzoxazine (60%). The value of the dielectric constant of neat polybenzoxazine was found to be 5.52 which was further improved to a maximum of 8.9 and 7.8 on reinforcement of 15 wt% chicken feather carbon and 15 wt% cashew nut shell cake carbon respectively. The prepared bio‐polybenzoxazine composites exhibit a near superhydrophobic nature with the value of water repulsive angle at 150° than that of neat matrix (143°). From the obtained results, it is suggested that the sustainable bio‐carbon reinforced bio‐based benzoxazine will be a promising material for thermally stable, high dielectric, and water‐repellent applications.Highlights Eco‐friendly, sustainable magnolol‐based bio‐benzoxazine was synthesized. Waste valorization for bio‐carbon—poultry, and agricultural wastes were utilized. Bio‐carbon reinforcement marginally increases the thermal stability of composites. Bio‐carbon reinforced composites exhibit close to superhydrophobic nature. Incorporation of bio‐carbon enhances the value of dielectric constant.

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Sesamol-based polybenzoxazines for ultra-low-k, high-k and hydrophobic coating applications

Abstract: Sesamol-based four different series of benzoxazines were developed and utilized for diverse applications, such as the hydrophobic coating on cotton fabrics, low dielectric and high dielectric applications. By following Mannich...

Cited by 16 publications

References 67 publications

Advancing coatings with polybenzoxazines: insights into molecular design, synthesis, and modification

Advancing coatings with polybenzoxazines: insights into molecular design, synthesis, and modification

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

Bio‐based benzoxazine composites derived from magnolol: Promising solution for sustainable alternatives for dielectric and superhydrophobic applications

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Sesamol-based polybenzoxazines for ultra-low-k, high-k and hydrophobic coating applications

Abstract: Sesamol-based four different series of benzoxazines were developed and utilized for diverse applications, such as the hydrophobic coating on cotton fabrics, low dielectric and high dielectric applications. By following Mannich...

Cited by 16 publications

References 67 publications

Advancing coatings with polybenzoxazines: insights into molecular design, synthesis, and modification

Advancing coatings with polybenzoxazines: insights into molecular design, synthesis, and modification

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

Bio‐based benzoxazine composites derived from magnolol: Promising solution for sustainable alternatives for dielectric and superhydrophobic applications

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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