环烯烃

huán xī tīnɡ
  • Cycloolefin;cyclic alkene
环烯烃环烯烃
  1. 用超临界CO2制备环烯烃共聚物共混物微孔材料

    Preparation and characterization of microcellular cyclic olefin copolymer blends using supercritical co_2

  2. 高性能环烯烃共聚物(COC)在许多领域具有广泛的应用前景,聚合工艺的核心就是催化剂的研发,开发具有高活性的可控聚合催化剂是目前国际上研究的热点。

    High performance cycloolefin copolymers ( COC ) have broad applications in many areas . The topic is to exploit highly active catalysts for controllable ethylene polymerization , which has become one of hot points in this field .

  3. 轻质馏分脂肪烃主要为环烯烃和二烯烃等烯烃,烷烃中以环烷烃居多;

    Aliphatic in light fraction is mainly alkene and cycloalkyl substance .

  4. 大环烯烃参与的开环易位共聚合及环状聚合物的合成与表征

    Ring-Opening Metathesis Copolymerization of Macrocyclic Olefin and Synthesis of Cyclic Polymers

  5. 单活性中心催化剂催化乙烯共聚及环烯烃聚合的研究

    The Copolymerization of Ethylene and Polymerization of Cycloolefin Catalyzed by Single-Site Catalysts

  6. 典型环烯烃共聚物材料,比高密度聚乙烯和聚丙烯模量较高。

    Typical COC material will have a higher modulus than HDPE and PP.

  7. 环烯烃共聚物的自然形态,类似玻璃。

    COC has a transparency similar to glass in its natural form .

  8. 环烯烃共聚物的制备过程研究

    Study on Preparation Process of Cycloolefin Copolymer

  9. 综述了环烯烃加成聚合的催化剂体系及其聚合物的研究和开发状况。

    The research and development of addition polymerization ofcycloolefins and the properties of polycycloolefins are reviewed .

  10. 茂金属环烯烃聚合物技术进展

    Development of Metallocene Cycloolefin Polymer Technology

  11. 而高沸点的环烯烃及其醇类却随着蒸馏时间的增加而增加。因而可以通过控制蒸馏时间,提高互叶白千层精油的质量,同时可以降低能耗。

    Thus , improved oil quality and decreased energy consumption could be resulted by controlling the duration of distillation .

  12. 与二元共聚类似,随着环烯烃/α-烯烃比例增大,三元共聚活性降低而环烯烃插入率增加。

    Similar to ethylene-norbornene copolymerization , with increasing the cyclic olefin / a-olefin ratio , the activity decreases and the cyclic olefin incorporation increases for terpolymerization .

  13. 评述了茂金属环烯烃聚合物的最新进展,讨论了环烯烃聚合及其与乙烯共聚合的茂金属催化体系、聚合机理、聚合工艺以及茂金属环烯烃共聚物的性能及应用。

    The latest progresses in cycloolefin polymer with metallocene catalysts are reviewed . The metallocene catalytic system , polymerization mechanism and polymerization process for the addition polymerization of cycloolefins , and properties and applications of cycloolefin copolymer are discussed .

  14. 介绍了含氧、氮等杂原子单活性中心催化剂,包括后过渡金属催化剂,应用于乙烯、α-烯烃、环烯烃及其他极性单体的聚合。

    This paper introduced the progress in studies on the single site catalysts containing heteroatom like oxygen and nitrogen , including the late transition metal catalysts , and their applications in the polymerization of ethylene , α - olefins , cyclic olefins and other polar monomers .

  15. Fe、Ni、Co-吡啶配合物对环多烯烃的均相选择催化氢化

    Homogeneous Catalytic Selective Hydrogenation of Cyclic Polyenes by ( Fe , Ni , Co ) - Pyridine Complexes

  16. 研究了环多烯烃的烯键在M(Fe,Ni,Co)-吡啶配合物存在下的均相选择催化氢化。

    The homogenous catalytic selective hydrogenation of cyclic polyenes by M ( Fe , Ni , Co ) & pyridine complexes was studied .

  17. 讨论了配合物中心元素和环多烯烃构造对催化氢化反应的影响,同时提出了反应过程的机理。

    Influences of the central elements of the complexes on the reaction were discussed and the catalytic reaction mechanism was proposed .

  18. 开环移位聚合制备环烯烃聚合物的新进展

    Advances in preparation of cycloolefin polymers by ring-opening metathetic polymerization