石油炼制与化工

• 油品与添加剂 • 上一篇    下一篇

高分子减阻剂共聚物的合成与表征

陈文生 李惠萍 苏张教 薄文敏   

  1. 新疆大学化学与化工学院 新疆大学化学与化工学院 新疆大学化学与化工学院 新疆大学化学与化工学院
  • 收稿日期:2009-03-11 修回日期:1900-01-01 出版日期:2009-09-12 发布日期:2009-09-12
  • 通讯作者: 陈文生

SYNTHESIS AND CHARACTERIZATION OF DRAG REDUCING COPOLYMER

Chen Wen-Sheng   

  • Received:2009-03-11 Revised:1900-01-01 Online:2009-09-12 Published:2009-09-12
  • Contact: Chen Wen-Sheng

摘要: 采用本体聚合法,以TiCl4/MgCl2-Al(i-Bu)3 为催化剂对1-辛烯/1-十二烯的长链α-烯烃进行共聚,考察不同的聚合条件对减阻率的影响,来提高二元聚合物的减阻率,最终确定最佳工艺条件。聚合物环道减阻测试的结果表明,当1-辛烯在反应物中体积分数为33%左右时,减阻率高达52.3%,通过凝胶色谱、1H-NMR、IR等方法对聚合物进行表征,证明用该方法可以制得重均相对分子质量为6.58×106 ,数均相对分子质量为2.41×106,相对分子质量分布宽度指数为2.73的原油用聚合物减阻剂,聚合较完全。

关键词: 1-辛烯/1-十二烯, 共聚, 减阻率, 表征

Abstract: High efficient drag reducing agent was synthesized by bulk polymerization using TiCl4/MgCl2-Al(i-Bu)3 as catalyst and mixed 1-octene/1-dodecene long chain α-olefins as monomers.The effect of reaction conditions on the drag reducing efficiency of copolymer was investigated and optimum process parameters were obtained. The prepared copolymer was characterized by GPC, 1H-NMR, IR and its drag reducing performance was evaluated by a loop testing system. Test results showed that a polymer obtained at a 1-octene volume ratio of 33% having high molecular weight (Mw=6.58×106, Mn=2.41×106, Mw/Mn=2.73) was well polymerized, and its drag reduction rate at an added dosage of 0.01 Kg/m3 with diesel fuel was up to 52.3%, which indicated that the obtained polymer could be used as drag reducing agent for crude oil.

Key words: 1-Octene/1-Dodecene, copolymerization, drag reducing efficiency, characterization