聚(苯乙烯-α-十二烯)高吸油树脂的制备与性能研究

以苯乙烯和α-十二烯为单体,二乙烯基苯为交联剂,过氧化二苯甲酰为引发剂,采用悬浮聚合法合成聚(苯乙烯-α-十二烯)高吸油树脂,并探讨了其烷基化处理效果。重点研究了α-十二烯用量、交联剂用量以及烷基化处理对高吸油树脂吸油率和凝胶量的影响。研究发现,随着α-十二烯用量增加,高吸油树脂吸油率增加,而凝胶量下降;随着交联剂用量的增加,高吸油树脂吸油率下降,而凝胶量增加;经烷基化处理后,高吸油树脂的吸油率和凝胶量都有所增加,其对甲苯的最大吸油率可达16.8g.g-1,最大凝胶量可达90.2%;此外,高吸油树脂对不同油品的吸油率有所差异。

双亲水基型表面活性剂之合成与应用性能

本文以α—十二烯烃及二苯醚为原料,合成了十二烷基二苯醚二磺酸钠产品并测定相关应用性能。结果显示,其乳化性能高于LAS,泡沫性能低于LAS,但在高浓度无机盐、无机酸、无机碱溶液中能够保持稳定。去污力受水硬度影响极小,在650ppm硬水条件下,去污力仍可高于LAS近二倍。生物降解度可达至94.7%。

Synthesis of Polyalphaolefins on AlCl_3/TiCl_4 Catalyst

The oligomerzation reactions on different catalysts were investigated and discussed. 1-Octene, 1-decene, 1-do- decene, a mixture of olefins （with a mass ratio of w（l-octene）： w（1-decenc）：w（1-dodecene） equating to 30：40：30）, and the products from paraffin cracking were oligomerized on the AlCl3/TiC14 catalyst. The results indicated that the AlCl3 catalyst led to severe coking reaction. With an increase in carbon number of alpha-olefins, the freezing point of oligomers increased and the kinematic viscosity decreased. The oligomers formed from the mixed olefins and the paraffin cracking products showed higher kinematic viscosity. Normal paraffins contained in the cracked products could increase the freezing point of oligomers. Furthermore, the distillation range of oligomers obtained from the cracked products was close to those of oligo- mers originated from 1-octene and 1-decene, while the oligomers obtained from the mixed olefins and 1-dodecene had simi- lar distillation ranges.