Stereoselective Ring-Opening Polymerization of rac-Lactides Catalyzed by Aluminum Hemi-Salen Complexes
文献类型：期刊论文
| 作者 | Gao B ; Duan RL ; Pang X ; Li X ; Qu Z ; Tang ZH ; Zhuang XL ; Chen XS |
| 刊名 | organometallics
 |
| 出版日期 | 2013 |
| 卷号 | 32期号:19页码:5435-5444 |
| 关键词 | CYCLIC ESTER POLYMERIZATION RACEMIC LACTIDE EPSILON-CAPROLACTONE RENEWABLE RESOURCES INITIATOR SYSTEM LIGAND SYNTHESIS BASE COMPLEX ZINC MECHANISM REACTIVITY |
| ISSN号 | 0276-7333 |
| 通讯作者 | pang x |
| 中文摘要 | a series of unreported aluminum complexes supported by asymmetrically o,n,n,o-quadridentate hemi-salen ligands were synthesized by binaphthyl-imine derivatives. these complexes were characterized and used as catalysts in rac-lactide or l-lactide polymerization. the x-ray diffraction analysis showed that molecular structures of (s)-3 and (rac)-4 were mononuclear coordination compounds with five-coordinated aluminum atoms in the solid state. using 2-propanol as cocatalyst, complex (s)-6 revealed the highest activity among these aluminum coordination compounds toward the ring-opening polymerization of l-lactide, and complex (s)-2 displayed the highest stereospecificity for the ring-opening polymerization of rac-lactide, affording partially isotactic polylactide with a p-m of 0.64. the polymerization kinetics using (s)-6 as a catalyst were investigated at great lengths. the kinetics of the polymerization consequences proved that the polymerization was first-order in monomer as well as catalyst. there was a linear dependence between the rac-lactide conversion and the number-average molecular weight of the macromolecules. the pdi values of these macromolecules were in a narrow range (1.04-1.09). |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000326122600029 |
| 公开日期 | 2014-04-15 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/49541]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gao B,Duan RL,Pang X,et al. Stereoselective Ring-Opening Polymerization of rac-Lactides Catalyzed by Aluminum Hemi-Salen Complexes[J]. organometallics,2013,32(19):5435-5444. |
| APA | Gao B.,Duan RL.,Pang X.,Li X.,Qu Z.,...&Chen XS.(2013).Stereoselective Ring-Opening Polymerization of rac-Lactides Catalyzed by Aluminum Hemi-Salen Complexes.organometallics,32(19),5435-5444. |
| MLA | Gao B,et al."Stereoselective Ring-Opening Polymerization of rac-Lactides Catalyzed by Aluminum Hemi-Salen Complexes".organometallics 32.19(2013):5435-5444. |
入库方式： OAI收割
来源：长春应用化学研究所
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