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Radical homo- and copolymerizations of methyl α-trifluoroacetoxyacrylate

✍ Scribed by Hitoshi Tanaka; Tomomi Takeichi; Takahiro Hongo

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
127 KB
Volume
35
Category
Article
ISSN
0887-624X

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✦ Synopsis

Radical homo-and copolymerizations of methyl a-trifluoroacetoxyacrylate (MTFAA) are studied by using azo initiators at 40 and 60ЊC. The rate of the homopolymerization of MTFAA was lower than that of methyl a-acetoxyacrylate. Monomer reactivity ratios ( r), and Q and e values were estimated to be r 1 Å 0.03, r 2 Å 0.27, Q 1 Å 0.65, and e 1 Å 1.38 from the copolymerization of MTFAA ( M 1 ) and styrene ( M 2 ) at 60ЊC. Preferential crosspropagation was observed in particular in the copolymerization of MTFAA and a-methylstyrene. The influence of replacing the hydrogens of the acetoxy moiety of the acyloxyacrylate with the fluorines upon the copolymerization reactivity is discussed on the basis of the 13 C-NMR chemical shift of various acyloxyacrylates.

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