| 结构调节剂对液体异戊二烯聚合的影响 |
| Effect of structural modifiers on polymerization of liquid isoprene rubber |
| 投稿时间：2017-11-09 修订日期：2017-11-09 |
| DOI： |
| 中文关键词: 阴离子聚合 液体异戊二烯橡胶 结构调节剂 顺1,4结构 |
| 英文关键词: anionic polymerization liquid isoprene rubber structural modifier cis-1,4-structure |
| 基金项目: |
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| 中文摘要: |
| 采用锂系阴离子聚合工艺合成液体异戊二烯橡胶( LIR),在聚合过程中添加5种不同的结构调节剂,研究他们对LIR结构的影响。结果表明：非极性调节剂二硫化碳(CS2)对LIR顺-1,4含量的影响不大；极性调节剂均可降低顺-1,4含量。其中二乙二醇二甲醚(2G)、四甲基乙二胺(TMEDA)对顺-1,4含量的调节作用较大；乙醚(Et2O)对顺-1,4含量的调节作用较小；四氢呋喃(THF)作为结构调节剂效果最好。 |
| 英文摘要: |
| 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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