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High Pressure Copolymerization of Cyclopentene with Maleic Anhydride by Yokawa, Masaru ;Ogo, Yoshiaki ;Imoto, Tatsuya is a Chemistry article available to read on EtoBox.

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## Abstract Radical copolymerization of cyclopentene with maleic anhydride was investigated under high pressure up to 6000 kg/cm^2^ at 60°C. The rate of copolymerization increased markedly with pressure and the conversion at 6000 kg/cm^2^ attained a maximum constant value in a few minutes. This behavior indicated very large absolute values for the activation volume compared with other vinyl polymerization systems. The copolymer composition was affected by pressure, for a given monomer feed the content of cyclopentene in the copolymer increased with pressure. This is an explanation for the penultimate effect due to cyclopentene. High pressure is presumed to be effective for eliminating the penultimate effect in copolymerization.

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Author

Yokawa, Masaru ;Ogo, Yoshiaki ;Imoto, Tatsuya

Publisher

Wiley (John Wiley & Sons); Wiley (ISSN 0025-116X)

Published

1973

Field

Chemistry (Physical Sciences)