RESEARCH ARTICLE
Exploring the Potential of Bifunctional Polybenzoxazines Containing Schiff Bases for Superhydrophobic and Anticorrosion Properties: A Comprehensive Study on Synthesis and Characterization
Priyanka Madesh,
Balaji Krishnasamy,
Vasuki Kumarasamy,
Kasthuri Periyaiay Kannaiah,
Priyanka Madesh
Department of Chemistry, PSG Institute of Technology and Applied Research, Coimbatore, India
Search for more papers by this authorCorresponding Author
Balaji Krishnasamy
Department of Chemistry, PSG Institute of Technology and Applied Research, Coimbatore, India
Correspondence:
Balaji Krishnasamy ([email protected])
Search for more papers by this authorVasuki Kumarasamy
Department of Chemistry, PSG Institute of Technology and Applied Research, Coimbatore, India
Department of Chemistry, Government Arts College, Coimbatore, India
Search for more papers by this authorKasthuri Periyaiay Kannaiah
Department of Chemistry, Government Arts College, Coimbatore, India
Search for more papers by this authorPriyanka Madesh,
Balaji Krishnasamy,
Vasuki Kumarasamy,
Kasthuri Periyaiay Kannaiah,
Priyanka Madesh
Department of Chemistry, PSG Institute of Technology and Applied Research, Coimbatore, India
Search for more papers by this authorCorresponding Author
Balaji Krishnasamy
Department of Chemistry, PSG Institute of Technology and Applied Research, Coimbatore, India
Correspondence:
Balaji Krishnasamy ([email protected])
Search for more papers by this authorVasuki Kumarasamy
Department of Chemistry, PSG Institute of Technology and Applied Research, Coimbatore, India
Department of Chemistry, Government Arts College, Coimbatore, India
Search for more papers by this authorKasthuri Periyaiay Kannaiah
Department of Chemistry, Government Arts College, Coimbatore, India
Search for more papers by this authorFirst published: 28 November 2024
Funding: The authors received no specific funding for this work.
ABSTRACT
Two series of bifunctional benzoxazines (HC-benz and HA-benz) containing Schiff bases (HC and HA) were synthesized through Mannich condensation. The structural confirmation of the Schiff base containing hydroxyl derivatives and benzoxazines was carried out using ATR-FTIR, HRMS, and 1H-NMR spectroscopic techniques. The cure behavior and thermal stability were studied using DSC and TGA, respectively. Among the different benzoxazines studied, the HC-jfm and HA-jfm benzoxazines exhibited the lowest curing temperature of 216°C and 211°C, respectively. Both poly(HC-dde) and poly(HA-dde) showed higher char yield value of 41% at 850°C. The values of LOI and heat resistance index calculated from TGA data infer that these benzoxazines in particular poly(HC-dde) and poly(HA-dde) can be conveniently used for self-extinguishing and heat-resistant applications which was proved by achieving V0 rating during vertical flammability test. Results from EIS studies showed that poly(HC-jfm) and poly(HA-jfm) exhibited corrosion protection efficiency of 99.19% and 99.99%. The value of water contact angle results suggested that all the synthesized polybenzoxazines are hydrophobic in nature, whereas the poly(HC-ddm) and poly(HA-ddm) revealed the superhydrophobic behavior with values of 149o and 159o, respectively. The cotton fabric coated with polybenzoxazine exhibits excellent resistance to UV and chemicals. Data from different studies infer that these benzoxazines can be used in the form of coatings for thermally stable, anticorrosive, and superhydrophobic high-performance applications.
Conflicts of Interest
The authors declare no conflicts of interest.
Open Research
Data Availability Statement
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Supporting Information
| Filename | Description |
|---|---|
| pat70012-sup-0001-Supinfo.docxWord 2007 document , 5 MB |
Data S1. Supporting Information. |
Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
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