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| Thesis Name： |
Palladium-mediated copolymerization of cyclic olefins and carbon monoxide : competition between ketone and spiroketal microstructures. |
| Usage： |
chemistry |
| Keyword： |
cyclic olefins,carbon monoxide ,opolymerization,microstructures |
| Remarks： |
The purpose of this project is to study the copolymerization of carbon
monoxide with cyclic olefines by using a cationic palladium catalyst catalyst composition which are prepared from palladium acetate, a suitable amount of 1,10-phenanthroline, a Bronsted acid ( eg. p-toluenesulfonic acid) and suitable
amount of methanol. The polymerization reactions were conducted at a high pressure of carbon monoxide under various reaction conditions. The resulting
polymers can be isolated collected after completing the polymerization
reaction and after precipitation and collected by filtration. Based on 13C-NMR 、1H-NMR、MALDI-TOF and GC-MS analyses, the microstructure of the resulting copolymer can be identified. Our results clearly reveal that the microstructures of the resulting copolymers are highly depending on the structure of the cyclic olefins. In the second part of this paper , we focus on the influence of polymer structure and physical properties by 1,4-
Benzoquinone. Finally , a terpolymerization of ethylene , endo-
dicyclopentadiene and carbon monoxide was studied to investingate the
convection between cyclization and the 〝Thorpe-Ingold effect〞. |
| Original file： |
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Promulgator Detail |
| Full name: |
administrator |
| Country: |
CN |
| City: |
Dalian |
| Company Name: |
teloon Soft Strategy Co.,LTD |
| Homepage: |
http://m.hqsq.net |
| E-mail: |
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