Salenal(opr) catalyst for the copolymerization of co2 and cyclohexene oxide
文献类型：期刊论文
| 作者 | Cui, Q; Zhang, M; Xu, SP; Liu, BH; Chen, LB |
| 刊名 | Acta polymerica sinica
 |
| 出版日期 | 2006-06-01 |
| 期号 | 3页码:541-544 |
| 关键词 | Co2 Cyclohexen oxide Copolymerizaiton Salenal(opr) Catalyst |
| ISSN号 | 1000-3304 |
| 通讯作者 | Cui, q(zhangmin@gic.ac.cn) |
| 英文摘要 | Salenmx has drawn much attention recently, because it is nonsensitive to moisture and effective for copolymerization of co2 and epoxides. however, usually expensive organic metal compounds were used. a low cost procedure of salenmx preparation is described that salenal (opr) can be obtained by using aluminium isopropoxide reacted with salenh(2) in tetrahydrofuran at room temperature overnight. the catalyst precursor schiff-base salenh(2) (n,n'-bis(salicylidene) -1,2-phenylenediamine) was synthesized by refluxing 2 equiv salicylaldehyde and 1 equiv of 1 2-phenylendiamine in methnol for a period of time. salenh2 and salenal ( opr) were characterized by ft-ir, mass spectroscopy, uv-vis and h-1-nmr. the copolymerization of carbon dioxide and cyclohexene oxide (cho) was carried out at 80 degrees c for a certain period time using 50 mg salenal(opr) as catalyst. salenal(opr) had been shown to be an effective catalyst for the copolymerization of co2 and cho along with a small quantity of byproduct cyclic carbonate. the addition of various cocatalysts, including dmap, n-melm, dbu and bu4ncl or bu4nbr salts can greatly enhance the rate of copolymerization. the copolymers were produced with > 95 % carbonate linkages and < 5 % cyclic carbonates. the highest catalytic efficiency is 190 g copolymer per g catalyst. |
| WOS关键词 | SALEN COMPLEXES ; CARBON-DIOXIDE |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000238403200032 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2379836 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Cui, Q |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Chem, Guangzhou 510650, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Q,Zhang, M,Xu, SP,et al. Salenal(opr) catalyst for the copolymerization of co2 and cyclohexene oxide[J]. Acta polymerica sinica,2006(3):541-544. |
| APA | Cui, Q,Zhang, M,Xu, SP,Liu, BH,&Chen, LB.(2006).Salenal(opr) catalyst for the copolymerization of co2 and cyclohexene oxide.Acta polymerica sinica(3),541-544. |
| MLA | Cui, Q,et al."Salenal(opr) catalyst for the copolymerization of co2 and cyclohexene oxide".Acta polymerica sinica .3(2006):541-544. |
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来源：中国科学院大学
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