Facile Synthesis of Hydroxyl-Ended, Highly Stereoregular, Star-Shaped Poly(lactide) from Immortal ROP of rac-Lactide and Kinetics Study
文献类型：期刊论文
| 作者 | Zhao W ; Cui DM ; Liu XL ; Chen XS |
| 刊名 | macromolecules
 |
| 出版日期 | 2010 |
| 卷号 | 43期号:16页码:6678-6684 |
| 关键词 | RING-OPENING POLYMERIZATION N PLA/PEO/PLA TRIBLOCK COPOLYMERS O MULTIDENTATE LIGANDS AMINO CALCIUM CATALYST SINGLE-SITE CATALYSTS EPSILON-CAPROLACTONE CYCLIC ESTERS BLOCK-COPOLYMERS HYDROLYTIC DEGRADATION TRIMETHYLENE CARBONATE |
| ISSN号 | 0024-9297 |
| 通讯作者 | cui dm |
| 中文摘要 | triethanolamine (tea) reacted with 3 equiv of yttrium alkyl complex 1 bearing o,n,n,o-tetradentate satan ligand to give a trinuclear yttrium alkoxide counterpart 2 via metathesis reaction. complex 2 initiated the ring-opening polymerization of rac-lactide in a livingness mode under mild conditions. remarkably, 2 was so tolerant of the protic tea that under various tea-to-yttrium molar ratios ranging from 1:3 up to 81:1, the polymerization performed smoothly, suggesting an immortal characteristic. the resultant polylactides had variable molecular weights (m-n = 1.36 x 10(4) to 32.54 x 10(4)) but narrow molecular weight distributions (pdi = 1.02-1.09), and, especially, pure heterotactic (p-r = 0.99), hydroxyl-functionalized and star-shaped architecture, which were fully characterized by nmr spectroscopy and mal-di-tof mass spectrum analyses and confirmed further by calculating the contraction factor value g' (g' = 0.96) via mark-houwink equations. detailed investigation of the "immortal" polymerization gave a unique kinetics law of -d[la]/dt = k(p)[la][tea](-0.352). |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000280855000022 |
| 公开日期 | 2012-04-26 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/43533]  |
| 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 | Zhao W,Cui DM,Liu XL,et al. Facile Synthesis of Hydroxyl-Ended, Highly Stereoregular, Star-Shaped Poly(lactide) from Immortal ROP of rac-Lactide and Kinetics Study[J]. macromolecules,2010,43(16):6678-6684. |
| APA | Zhao W,Cui DM,Liu XL,&Chen XS.(2010).Facile Synthesis of Hydroxyl-Ended, Highly Stereoregular, Star-Shaped Poly(lactide) from Immortal ROP of rac-Lactide and Kinetics Study.macromolecules,43(16),6678-6684. |
| MLA | Zhao W,et al."Facile Synthesis of Hydroxyl-Ended, Highly Stereoregular, Star-Shaped Poly(lactide) from Immortal ROP of rac-Lactide and Kinetics Study".macromolecules 43.16(2010):6678-6684. |
入库方式： OAI收割
来源：长春应用化学研究所
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