结构调节剂对SSBR结构与性能的影响

研究结构调节剂四氢呋喃(THF)、二乙二醇二甲醚(2G)和N，N，N′，N′-四甲基乙烯基二胺(TMEDA)对溶聚丁苯橡胶(SSBR)结构和性能的影响。试验结果表明，随结构调节剂用量的增大和反应温度的降低，SSBR中1，2-结构质量分数增大；随结构调节剂用量的增大，SSBR中苯乙烯结构质量分数逐渐接近苯乙烯与丁二烯的投料比；结构调节剂品种对SSBR物理性能影响不大，以THF为结构调节剂合成的SSBR动态性能最好。

Influence of structure modifiers on microstructure and properties of SSBR

The influence of various structure modifiers,such as THF,2G and TMEDA,on the microstructure and properties of SSBR was investigated.The test results showed that 1,2-content in SSBR increased as the modifier concentration increased and the reaction temperature decreased;the styrene content in SSBR closed gradually to the charge ratio of styrene/butadiene as the modifier concentration increased;and the type of structure modifier had little effect on the physical properties of SSBR,but THF gave the best dynamic properties to SSBR vulcanizates.