Citation: Qing-fei Zhang, Xiu-bo Jiang, Ai-hua He. Synthesis and Characterization of trans-1,4-Butadiene/Isoprene Copolymers：Determination of Monomer Reactivity Ratios and Temperature Dependence[J]. Chinese Journal of Polymer Science, ;2014, 32(8): 1068-1076. doi: 10.1007/s10118-014-1467-0 shu

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

1.
Key Laboratory of Rubber-Plastics (Ministry of Education)/Shandong Provincial, Key Laboratory of Rubber-Plastics, School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

Received Date: 5 December 2013
Revised Date: 7 January 2014

Fund Project: This work was financially supported by the National Key Technology RD 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).

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-Tds (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.
- trans-1,4-,
- Isoprene,
- Butadiene,
- Copolymer,
- Reactivity ratio
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