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Synthesis and characterisation of urethane-methacrylates I

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Abstract

The paper describes the synthesis of urethane methacrylate resins by reaction of tolylene diisocyanate (TDI), butanol-1 (B) and 2-hydroxyethylmethacrylate (HEMA) by a two step procedure. Characterisation was done using FT-IR, FT-NMR, Mass Spectroscopy. The effect of temperature on the UV-curing behaviour was investigated by differential photocalorimetry. An activation energy of 8.4 kJ/mole was found in the temperature range of 50–100°C. Free radical polymerisation in presence of benzoyl peroxide was also investigated. The polymers were stable upto 200°C in N2 atmosphere. A two step decomposition was observed in the temperature range of 200–500°C.

Zusammenfassung

Vorliegende Arbeit beschreibt die Synthese von Urethan-methacrylat-Harzen durch die Reaktion von Toluylendiisocyanat (TDI), Butanol-1 (B) und 2-Hydroxyethylmethacrylat (HEMA) in einem zweistufigen Herstellungsverfahren. Charakterisiert wurden die Produkte mittels FT-IR, FT-NMR und Massenspektroskopie. Anhand von Differentialfotokalorimetrie wurde der Einfluß der Temperatur auf das UV-Aushärtungsverhalten untersucht. Im Temperaturbereich 50–100°C wurde eine Aktivierungsenergie von 8.4 kJ/mol gefunden. Weiterhin wurde auch die Radikalkettenpolimerisation in Gegenwart von Benzoylperoxid untersucht. In Stickstoffatmosphäre sind die Polymere bis 200°C stabil. Im Temperaturbereich 200–500°C wurde eine zweistufige Zersetzung beobachtet.

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References

  1. L. Kushner and R. S. Tu., Mod. Plast., 60 (1983) 87.

    Google Scholar 

  2. M. Koshiba, K. K. S. Hwang, S. K. Foley, D. J. Yarusso and S. L. Cooper, J. Mater. Sci., 17 (1982) 1447.

    Google Scholar 

  3. Shaow B. Lin, S. Y. Tsay, T. A. Speckhard, K. K. S. Hwang, J. J. Jezerc and S. L. Cooper, Chem. Eng. Comm., 30 (1984) 251.

    Google Scholar 

  4. C. Li, R. M. Nagarajan, C. C. Chiang and S. L. Cooper, Polym. Eng. & Sci., 26 (1986) 1442.

    Google Scholar 

  5. T. A. Speckhard, K. K. S. Hwang, S. B. Lin, S. Y. Tsay., M. Koshiba, Y. S. Ding and S. L. Cooper, J. Appl. Polym. Sci., 30 (1985) 647.

    Google Scholar 

  6. N. Levy and P. E. Massey, Polym. Eng. Sci., 21 (1981) 406.

    Google Scholar 

  7. R. G. Arnold, J. A. Nelson and J. J. Verbanc, Chem. Rev., 57 (1957) 47.

    Google Scholar 

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The Instrument system of E. I. DuPont de Nemours & Co. is acknowledged for differential photocalorimeter studies.

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Varma, J.K., Santhana Gopala Krishnan, P. & Choudhary, V. Synthesis and characterisation of urethane-methacrylates I. Journal of Thermal Analysis 36, 2611–2622 (1990). https://doi.org/10.1007/BF01913658

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  • DOI: https://doi.org/10.1007/BF01913658

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