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

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 infl...

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Veröffentlicht in:	Chinese journal of polymer science 2014-08, Vol.32 (8), p.1068-1076
Hauptverfasser:	Zhang, Qing-fei, Jiang, Xiu-bo, He, Ai-hua
Format:	Artikel
Sprache:	eng
Schlagworte:	Butadiene Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Composition effects Condensed Matter Physics Copolymers Industrial Chemistry/Chemical Engineering Isoprene Mathematical analysis Monomers Polymer Sciences Precipitation Temperature dependence 丁二烯共聚物组成单体竞聚率反应温度反式合成异戊二烯表征
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Zusammenfassung:	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.
ISSN:	0256-7679 1439-6203
DOI:	10.1007/s10118-014-1467-0