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Synthesis and Characterization of trans-1,4-Butadiene/Isoprene Copolymers: Determination of Monomer Reactivity Ratios and Temperature Dependence 被引量:9

Synthesis and Characterization of trans-1,4-Butadiene/Isoprene Copolymers: Determination of Monomer Reactivity Ratios and Temperature Dependence
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摘要 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-Tiid6s (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 rBd and supplied an effective adjustment on copolymers' composition distribution. 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-Tiid6s (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 rBd and supplied an effective adjustment on copolymers' composition distribution.
出处 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2014年第8期1068-1076,共9页 高分子科学(英文版)
基金 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) the Major Projects of Independent Innovation Achievements Transformation in Shandong Province(No.2013ZHZX1A0207)
关键词 trans-1 4- ISOPRENE BUTADIENE COPOLYMER Reactivity ratio. trans-1,4- Isoprene Butadiene Copolymer Reactivity ratio.
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