Synthesis, characterization, and property evaluations of copolymers of diamantyl methacrylate with methyl methacrylate

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Sinkel, Carsten ; Agarwal, Seema ; Fokina, Natalie A. ; Schreiner, Peter R.:
Synthesis, characterization, and property evaluations of copolymers of diamantyl methacrylate with methyl methacrylate.
In: Journal of Applied Polymer Science. Bd. 114 (2009) Heft 4 . - S. 2109-2115.
ISSN 1097-4628
DOI: https://doi.org/10.1002/app.30206

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Abstract

This work reports the homo- and copolymerization behavior of previously unknown 4-diamantyl methacrylate (DMA) with vinyl comonomers like methyl methacrylate (MMA); the starting monomer DMA was synthesized in our laboratory using 4-diamantanol and methacryloyl chloride. The structures of the homo- and copolymers were analyzed using NMR techniques. DMA was found to be more reactive than MMA during copolymerization. The reactivity ratios as determined by the Kelen-Tüdos method are rMMA = 0.58 and rDMA = 1.75. The incorporation of a few mol of diamantyl units into the PMMA backbone led to a significant increase in its thermal stability and glass transition temperature. The polymers with 15 and 42 mol of DMA units in the copolymers showed increased Tg values of 126°C and 172°C, respectively. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009