| Effect of structural modifiers on polymerization of liquid isoprene rubber |
| Received:November 09, 2017 Revised:November 09, 2017 |
| DOI： |
| Key Words: anionic polymerization; liquid isoprene rubber; structural modifier; cis-1,4-structure |
| Author Name | Affiliation | E-mail | | CHEN Xiao-li* | Technology R D Center of Shandong Yuhuang Chemical Group Co.,Ltd. | shini2199@sina.com | | SU Zhong-kui | Technology R D Center of Shandong Yuhuang Chemical Group Co.,Ltd. | | | MA Song-kai | Technology R D Center of Shandong Yuhuang Chemical Group Co.,Ltd. | |
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| Abstract: |
| The liquid isoprene rubber (LIR) was synthesized by lithium anion polymerization. Five different structural regulators were added to the polymerization process to study their effect on LIR structure. The results show that the non-polar regulator carbon disulfide (CS2) has little effect on the content of LIR cis-1,4, and the polar modifier can reduce the content of cis-1,4. The effect of diethylene glycol dimethyl ether (2G) and tetramethylethylenediamine (TMEDA) on the content of cis-1,4 was higher; The effect of ether (Et2O) on the content of cis-1,4 was smaller; Tetrahydrofuran (THF) as a structural regulator of the best results. |
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