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Effective incorporation of divinylbenzene in the isospecific styrene polymerization catalyzed by an aryl-substituted [OSSO]-type zirconium(IV) complex

Polymer Journal volume 54, pages 1133–1137 (2022)Cite this article

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Abstract

The abundant incorporation of p-divinylbenzene (DVB) in isotactic poly(styrene) units has been achieved by the stereospecific copolymerization employing an aryl-substituted [OSSO]-type zirconium(IV) precatalyst 2b in the presence of dried modified-methylaluminoxane (dMMAO) as an activator. The resulting poly(iso-styrene‐co‐DVB)s possessed very high molecular weights (Mw = 93,000−131,000 g mol−1) and unimodal polydispersity indices (PDI = 1.8−2.5). The corresponding activities were recorded to reach up to 738 g mmol(2b)–1 h–1. The DVB contents (7–20 mol %) in the copolymer could be varied depending upon the feed concentration. These copolymers exhibited an amorphous phase structure with glass transition temperatures (Tg values) of 84.8–110.9 °C.

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Scheme 1
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Acknowledgements

This work was supported by a grant-in-aid (no. 23750034 to NN) from the Japanese Ministry of Education, Culture, Sports, Science, and Technology (MEXT).

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  1. Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan

    Kazuaki Nakamura, Takuya Kishi, Akihiko Ishii & Norio Nakata

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  1. Kazuaki Nakamura
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Correspondence to Norio Nakata.

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Nakamura, K., Kishi, T., Ishii, A. et al. Effective incorporation of divinylbenzene in the isospecific styrene polymerization catalyzed by an aryl-substituted [OSSO]-type zirconium(IV) complex. Polym J 54, 1133–1137 (2022). https://doi.org/10.1038/s41428-022-00660-w

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