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Synthesis and characterization of cage structured flame resistant melamine and pentaerythritol based polymer networks

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Abstract

In this study, a Schiff base 2,4,6-tris(4-hidroksibenzimino)-1,3,5-triazine (HT) was synthesized from condensation reaction of 4-hydroxybenzaldehyde and melamine. Subsequently, various imine or ether bond cage polymers were synthesized using 2,4,6-tris(4-hydroxybenzimino)-1,3,5-triazine (HT), pentaerythritol (PT), 1,5-dibromopentane (DP), and p-xylylene dibromide (DX) in DMF. The structures of the compounds were characterized using FT-IR, 1H, 13C-NMR and TGA measurements. The surface morphologies, particle ratious and the glass transition temperatures of polymers were found from SEM, DLS and DSC measurements, respectively. The melamine-based polymers PHTDX and PHTDP were synthesized from the monomer HT. Pentaerythritol-based PPTDX and PPTDP polymers were synthesized from the monomer PT. Melamine (M) and pentaerythritol are used in many applications, such as fire-resistant coatings and flame-retardant plastics. Thermally stable polymers were prepared with melamine and pentaerythritol. Based on SEM images, the polymers were found to have a porous structure. These pores make the polymers flame retardant by trap** combustible gases during thermal degradation. The limiting oxygen index values of PHTDX, PHTDP, PPTDX, and PPTDP at 1000 °C were reported to be 43.96, 40.42, 31.35 and 23.11, respectively, in TGA measurements.

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Synthesis and characterization of cage structured flame resistant melamine and pentaerythritol based polymer networks

İsmet Kaya, Ruhsar Ela İriş, Hatice Karaer Yağmur

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Acknowledgements

The authors thank Çanakkale Onsekiz Mart University scientific research project commission for support with the project number (Project Nu.: FYL-2018-2596).

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Authors and Affiliations

  1. Polymer Synthesis and Analysis Laboratory, Department of Chemistry, Çanakkale Onsekiz Mart University, 17020, Çanakkale, Turkey

    İsmet Kaya, Ruhsar Ela İriş & Hatice Karaer Yağmur

  2. Faculty of Science, Department of Chemistry, Dicle University, 21400, Diyarbakır, Turkey

    Hatice Karaer Yağmur

Authors
  1. İsmet Kaya
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  2. Ruhsar Ela İriş
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  3. Hatice Karaer Yağmur
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Contributions

İsmet Kaya: Supervision, methodology, conceptualization, data curation, writing-review & editing, funding acquisition, resources, project administration. Ruhsar Ela İriş: Data curation, methodology, writing-review & editing, original draft, validation, conceptualization, data curation. Hatice Karaer Yağmur: Writing-review & editing, original draft, conceptualization, data curation.

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Correspondence to İsmet Kaya.

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Highlights

• Highly cross-linked porous melamine-based framework polymers and ether bridge aliphatic polymers were synthesized from condensation and elimination reactions, respectively.

• Residue amounts of polymers containing imine bonding and phenyl groups were found to be higher at 1000 °C.

• Polymers containing imine bonding and phenyl groups can be used as flame resistant due to their high LOI values.

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Kaya, İ., İriş, R.E. & Yağmur, H.K. Synthesis and characterization of cage structured flame resistant melamine and pentaerythritol based polymer networks. J Polym Res 30, 388 (2023). https://doi.org/10.1007/s10965-023-03761-z

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  • DOI: https://doi.org/10.1007/s10965-023-03761-z

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