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Article

Lewis Acid-Mediated Copolymerization of Methyl Acrylate and Methyl Methacrylate with 1-Alkenes

Supporting Info

Megan Nagel, Dawn Poli, and Ayusman Sen*

Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802

Macromolecules, 2005, 38 (17), pp 7262–7265

DOI: 10.1021/ma050705r

Publication Date (Web): July 26, 2005

Corresponding author. E-mail: asen@psu.edu.

Abstract

The addition of the Lewis acid, Sc(OTf)₃, to 2,2‘-azobis(2-methylpropionitrile) (AIBN)-initiated copolymerizations of both methyl acrylate (MA) and methyl methacrylate (MMA) with 1-alkenes results in increased reaction rate and increased incorporation of the latter monomer into the polymer backbone. As little as 4 mol % of the Lewis acid is effective in forming a nearly alternating copolymer of MA and ethene at 67% MA conversion. This procedure allows for the control of copolymer composition independent of the starting monomer feed ratio.

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