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Synthesis, characterization, and property evaluations of copolymers of diamantyl methacrylate with methyl methacrylate
Author(s) -
Sinkel Carsten,
Agarwal Seema,
Fokitalie A.,
Schreiner Peter R.
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30206
Subject(s) - copolymer , methyl methacrylate , polymer chemistry , monomer , glass transition , methacrylate , materials science , thermal stability , reactivity (psychology) , polymer , vinyl chloride , chemistry , organic chemistry , composite material , medicine , alternative medicine , pathology
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 r MMA = 0.58 and r DMA = 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 T g values of 126°C and 172°C, respectively. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009