私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關(guān)鏈接
聯(lián)系方式
  • 通信地址:北京市北三環(huán)東路15號(hào)
  • 郵編:100029
  • 電話:010-64433856
  • 傳真:010-64433856
  • Email:qgh96@yahoo.com.cn
當(dāng)前位置:> 首頁(yè) > 論文著作 > 正文
Synthesis and characterization of oligomer from 1-decene catalyzed by supported Ziegler–Natta catalyst

Oligomer of 1-decene was synthesized with Ziegler–Natta catalyst which consisted of TiCl4 and Et2AlCl, using
MgCl2 as support. The effects of temperature, Al/Ti ratio, time, and concentration of the catalyst on polymerization
behaviors were investigated. The results showed that the catalyst system was desirable for the oligomerization of
1-decene with good catalytic activity, 143.8 kg oligo/mol Ti h, under typical conditions. The oligomer obtained was
characterized with GC–MASS, GC and 13C NMR methods. Those results indicated that the oligomer was of a mixture
consisting of di-, tri-, tetra- and pentamer. The 13C NMR data also implied that chain propagation of the oligomer
involved primarily head-to-tail 1,2-insertions, as well as head-to-head and tail-to-tail 2,1-insertions.
 2005 Elsevier Ltd. All rights reserved.
Keywords: Heterogeneous Ziegler–Natta catalyst; 1-Decene; Oligomerization; Regiostructure

European Polymer Journal 41 (2005) 2909–2915

主站蜘蛛池模板: 浙江省| 三门峡市| 广汉市| 股票| 荣昌县| 临泉县| 尖扎县| 库尔勒市| 新安县| 遵化市| 沙湾县| 青冈县| 武威市| 巴彦淖尔市| 玉田县| 山东| 湖州市| 阳山县| 岗巴县| 安溪县| 兰考县| 团风县| 炉霍县| 洛扎县| 西畴县| 河北区| 鹿泉市| 东丽区| 双柏县| 宁津县| 中卫市| 湾仔区| 宜兰市| 庆云县| 舒兰市| 巴林右旗| 阿坝县| 六枝特区| 宝丰县| 安图县| 建平县|