Copolymerization of epsilon-Caprolactone and L-Lactide Catalyzed by Multinuclear Aluminum Complexes: An Immortal Approach
文献类型：期刊论文
| 作者 | Li, Lei ; Liu, Bo ; Liu, Dongtao ; Wu,Chunji ; Li,Shihui ; Liu,Bo ; Cui,Dongmei |
| 刊名 | organometallics
 |
| 出版日期 | 2014 |
| 卷号 | 33期号:22页码:6474-6480 |
| 关键词 | RING-OPENING POLYMERIZATION FACILE SYNTHESIS COORDINATION POLYMERIZATION REACTIVITY RATIOS BLOCK-COPOLYMERS CYCLIC ESTERS RAC-LACTIDE LIGANDS POLY(LACTIDE) MECHANISM |
| 通讯作者 | li,sh |
| 英文摘要 | a series of aluminum complexes l(a)al(2)me4 (1), (l2al4me4)-al-b (2), and (lal2me4)-al-c (3) have been prepared from the reaction of alme3 with salan- and salen-type ligands ((lh2)-h-a = [2-oh-3,5-bu-t(2)-c6h2ch2n(ch3)](2)-(m-phenylene); (lh4)-h-b = [(2)-oh-(3),5-bu-t(2)-c6h2ch2nh](2)-(m-phenylene); (lh2)-h-c = [2-oh-3,5-bu-t(2)-c6h2ch-n](2)-(m-phenylene)), respectively. all these complexes were characterized by nmr spectroscopy, x-ray diffraction, and elemental analyses, with complexes 1 and 3 adopting binuclear structures, while complex 2 being tetranuclear. in the presence of alcohol, the binuclear complexes 1 and 3 catalyzed controlled ring-opening homopolymerizations of both e-cl and l-la. in the copolymerization experiments, complexes 1 and 2 produced tapered copolymers of e-cl and l-la, while complex 3 was able to provide e-cl-co-l-la with tendentially random structure indicated by the average lengths of the caproyl and lactidyl sequences (lcl = 1.4; lla = 2.6). particularly, addition of excess alcohol into the catalytic system of complex 3 established the first immortal copolymerization of e-cl/l-la, which accelerated the polymerization rates of both monomers and, thus, afforded random copolymers with predictable molecular weights and narrow molecular weight distributions. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000345552500026 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/57208]  |
| 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 | Li, Lei,Liu, Bo,Liu, Dongtao,et al. Copolymerization of epsilon-Caprolactone and L-Lactide Catalyzed by Multinuclear Aluminum Complexes: An Immortal Approach[J]. organometallics,2014,33(22):6474-6480. |
| APA | Li, Lei.,Liu, Bo.,Liu, Dongtao.,Wu,Chunji.,Li,Shihui.,...&Cui,Dongmei.(2014).Copolymerization of epsilon-Caprolactone and L-Lactide Catalyzed by Multinuclear Aluminum Complexes: An Immortal Approach.organometallics,33(22),6474-6480. |
| MLA | Li, Lei,et al."Copolymerization of epsilon-Caprolactone and L-Lactide Catalyzed by Multinuclear Aluminum Complexes: An Immortal Approach".organometallics 33.22(2014):6474-6480. |
入库方式： OAI收割
来源：长春应用化学研究所
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