Abstract
An alternating copolymer of butadiene and a fluoroalkyl methacrylate If and its hydrogenated copolymer IIf were synthesized and identified. We designated these copolymers as widely-spaced comb-like polymers as we did the alkyl side chain copolymers in our previous paper [Polym. J., 15, 891 (1983)]. The fluoroalkyl methacrylate homopolymer IIIf is a brittle plastic but If and IIf are extensible elastomers. Although IIIf is soluble in benzotrifluoride only when warmed, If and IIf are soluble at room temperature. The cast films of If, IIf, and IIIf showed the same contact angles of water or n-alkane droplets. Differential scanning calorimetry study demonstrated the crystallization of the fluoroalkyl side chains of If and IIf in spite of their wide spaces. The fluoroalkyl side chains were found to be crystallizable more easily than the alkyl side chains of the same carbon atom numbers.
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