Polymerization of Lactide Using Achiral Bis(pyrrolidene) Schiff Base Aluminum Complexes
文献类型:期刊论文
作者 | Du HZ ; Velders AH ; Dijkstra PJ ; Zhong ZY ; Chen XS ; Feijen J |
刊名 | macromolecules
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出版日期 | 2009 |
卷号 | 42期号:4页码:1058-1066 |
关键词 | RING-OPENING POLYMERIZATION GROUP-3 METAL-COMPLEXES RAC-LACTIDE RACEMIC LACTIDE CYCLIC ESTERS SINGLE-SITE STEREOSELECTIVE POLYMERIZATION EPSILON-CAPROLACTONE ALKOXIDE INITIATORS POLY(LACTIC ACID) |
ISSN号 | 0024-9297 |
通讯作者 | chen xs |
中文摘要 | a series of aluminum ethyls and isopropoxides based on a bis(pyrrolidene) schiff base ligand framework has been prepared and characterized. nmr studies of the dissolved complexes indicate that they adopt a symmetric structure with a monomeric, five-coordinated aluminum center core. the aluminum ethyls used as catalysts in the presence of 2-propanol as initiator and the aluminum isopropoxides were applied for lactide polymerization in toluene to test their activities and stereoselectivities. all polymerizations are living, as evidenced by the narrow polydispersities and the good fit between calculated and found number-average molecular weights of the isolated polymers. all of these aluminum complexes polymerized (s,s)-lactide to highly isotactic pla without epimerization of the monomer, furnished isotactic-biased polymer from rac-lactide, and gave atactic polymer from meso-lactide. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000263429700027 |
公开日期 | 2010-05-27 |
源URL | [http://202.98.16.49/handle/322003/11849] ![]() |
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 | Du HZ,Velders AH,Dijkstra PJ,et al. Polymerization of Lactide Using Achiral Bis(pyrrolidene) Schiff Base Aluminum Complexes[J]. macromolecules,2009,42(4):1058-1066. |
APA | Du HZ,Velders AH,Dijkstra PJ,Zhong ZY,Chen XS,&Feijen J.(2009).Polymerization of Lactide Using Achiral Bis(pyrrolidene) Schiff Base Aluminum Complexes.macromolecules,42(4),1058-1066. |
MLA | Du HZ,et al."Polymerization of Lactide Using Achiral Bis(pyrrolidene) Schiff Base Aluminum Complexes".macromolecules 42.4(2009):1058-1066. |
入库方式: OAI收割
来源:长春应用化学研究所
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