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Synthesis and characterization of trans-1,4-butadiene/isoprene copolymers: Determination of monomer reactivity ratios and temperature dependence

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Abstract

A series of trans-1,4-butadiene/isoprene copolymers were prepared using the catalyst system TiCl4/MgCl2-Al(i-Bu)3 with bulk precipitation technology at different temperatures. Monomers reactivity ratios were calculated based on the Kelen-Tüdös (K-T) method and the Mao-Huglin (M-H) method. The influence of temperature on copolymer composition and polymerization rate was discussed in detail. The increase of reaction temperature brought the decrease of butadiene reactivity ratio r Bd and supplied an effective adjustment on copolymers’ composition distribution.

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Correspondence to Ai-hua He  (贺爱华).

Additional information

This work was financially supported by the National Key Technology R&D Program of China (No. 2011BAE26B05), the Shandong Province Natural Science Fund for Distinguished Young Scholars (No. JQ201213), National Natural Science Foundation of China (No. 21174074), Shandong Province Science and Technology Development Plan (No. 2012GGA05042), and the Major Projects of Independent Innovation Achievements Transformation in Shandong Province (No. 2013ZHZX1A0207).

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Zhang, Qf., Jiang, Xb. & He, Ah. Synthesis and characterization of trans-1,4-butadiene/isoprene copolymers: Determination of monomer reactivity ratios and temperature dependence. Chin J Polym Sci 32, 1068–1076 (2014). https://doi.org/10.1007/s10118-014-1467-0

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  • DOI: https://doi.org/10.1007/s10118-014-1467-0

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