1. Ketenes, notably dimethyl ketene, readily undergo oligomerization and polymerization.

2. The intrinsic kinetic model of IB oligomerization was set up by study of reaction mechanism.

3. Recent achievements in ethylene oligomerization by using transition metal complexes as catalysts are reviewed with emphases on the description of novel catalyst systems.

4. Synthesis of perfluorous nonene (C9F18) by oligomerization of hexafluoropropylene (C3F6) was studied.

5. We have studied the oligomerization of tetrafluoroethylene and its application.

6. Intrinsic kinetics of isobutene(IB) oligomerization was investigated over strong acid cation exchange resin as catalyst in presence of tert-butyl alcohol(TBA).

7. Proteolytic enzymes catalyze oligomerization of the. alpha . - hydroxy carboxylic acid and . alpha . - amino acid.

8. The oligomerization of 1-butene and 2-butene catalyzed by large pore sulfonated polystyrene resins was conducted in a 200ml stainless steel autoclave.

9. The highest ethylene oligomerization activity of the Ni ( II ) complexes is 9 . 15×10~5 g · mol ~ ( - 1 ) ( Ni ) · h ~ ( - 1 ).

10. The olefin oligomerization is an effective approach to produce motor fuels, detergent feedstock, lubricants, plasticizers and other chemicals.

11. Developing fine chemicals feedstocks and intermediates, including oligomerization products from propylene could generate high val ue and raise resources utilization efficiency.

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12. In the catalytic systems for ethylene oligomerization, different organo-aluminum compounds significantly influence the activity and selectivity of the catalysts.

13. Catalytic oligomerization of remain butylene is a way for enterprises to rebottle andpotentialities for more benefits.

14. The discussion on the mechanics indicated that the oligomerization reaction model of isobutene was reasonable.

15. In this paper, the research of catalysts of ethylene oligomerization is reviewed, focusing on zirconium, iron, nickel catalysts.

16. The recent advances in study of chromium-based homogeneous catalysts used in ethylene oligomerization were reviewed.

17. Many people believe that the United States, the first Thanksgiving Day was Indians and the new immigrants first oligomerization thank God for that day.

18. The results indicated that novel catalyst system had high activity for propylene oligomerization. The products were mainly tetramer and pentamer.

19. Free phosphoric acid acts as the active component of diatomite phosphate solid acid catalyst in propylene oligomerization and other reactions.

20. The cracking and skeletal isomerization became more strong with the rise of reaction temperature, while oligomerization, cyclization and hydrogen transfer reaction became weaker.

21. Then we made super acid catalyst with the nano-ZrO_2 and studied oligomerization on naphthalene with the catalyst.

22. The influence of solid superacid preparation on its properties and naphthalene oligomerization was investigated in this paper.