Zinc complexes containing asymmetrical N,N,O-tridentate ligands and their application in lactide polymerization
文献类型：期刊论文
| 作者 | Gao B ; Duan RL ; Pang X ; Li X ; Qu Z ; Shao HL ; Wang XH ; Chen XS |
| 刊名 | dalton transactions
 |
| 出版日期 | 2013 |
| 卷号 | 42期号:46页码:16334-16342 |
| 关键词 | RING-OPENING POLYMERIZATION EPSILON-CAPROLACTONE RAC-LACTIDE CYCLIC ESTERS STEREOSELECTIVE POLYMERIZATION EFFICIENT CATALYSTS ALUMINUM COMPLEXES INITIATOR SYSTEM BETA-DIKETONE BASE COMPLEX |
| ISSN号 | 1477-9226 |
| 通讯作者 | pang x |
| 中文摘要 | a series of zinc complexes based on asymmetrical n,n,o-tridentate ligands were prepared via binaphthyl diamine derivatives. these complexes were characterized and employed as catalysts in lactide polymerization. the x-ray diffraction analyses revealed that molecular structures of 1b and 2b were mononuclear complexes with zinc atoms in distorted octahedral geometries. upon co-catalysis with isopropanol, complex 2a showed the highest activity among these zinc complexes for the ring-opening polymerization of l-lactide, and complex 3a exhibited the highest stereoselectivity for the ring-opening polymerization of rac-lactide affording substantially isotactic polylactide (pla) with a p-m of 0.62. the polymerization kinetics using 2a as a catalyst was studied in detail. the kinetics of the polymerization results revealed that the rates of polymerization were first-order both in the monomer and the catalyst, and there was a linear relationship between the l-la conversion and the number-average molecular weight of pla with a narrow molecular distribution (1.07-1.17). the activation energy (31.49 kj mol(-1)) was deduced according to the arrhenius equation. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000326783200015 |
| 公开日期 | 2014-04-16 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/50141]  |
| 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. Zinc complexes containing asymmetrical N,N,O-tridentate ligands and their application in lactide polymerization[J]. dalton transactions,2013,42(46):16334-16342. |
| APA | Gao B.,Duan RL.,Pang X.,Li X.,Qu Z.,...&Chen XS.(2013).Zinc complexes containing asymmetrical N,N,O-tridentate ligands and their application in lactide polymerization.dalton transactions,42(46),16334-16342. |
| MLA | Gao B,et al."Zinc complexes containing asymmetrical N,N,O-tridentate ligands and their application in lactide polymerization".dalton transactions 42.46(2013):16334-16342. |
入库方式： OAI收割
来源：长春应用化学研究所
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