Polymerization of 2,2 '-Dimethyltrimethylene Carbonate by Lutetium Complexes Bearing Amino-Phosphine Ligands
文献类型:期刊论文
作者 | Liu B ; Cui DM |
刊名 | journal of applied polymer science
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出版日期 | 2009 |
卷号 | 112期号:5页码:3110-3118 |
关键词 | RING-OPENING POLYMERIZATION TRIMETHYLENE-CARBONATE EPSILON-CAPROLACTONE CYCLIC CARBONATES 2 L-LACTIDE ALIPHATIC POLYESTERS ALKYL COMPLEXES COPOLYMERIZATION INITIATORS 2-DIMETHYLTRIMETHYLENE CARBONATE |
ISSN号 | 0021-8995 |
通讯作者 | cui dm |
中文摘要 | a series of lutetium alkyl, amino, and guanidinato complexes based upon an amino-phosphine ligand framework had been prepared. these complexes were applied to initiate ring-opening polymerization of 2,2'-dimethyltrimethylene carbonate (dtc). the type of the initiator significantly influenced the catalytic activity of these complexes in a trend as follows: alkyl approximate to guanidinate > amide, whereas the complexes with flexible backbone between p and n atoms within the ligand exhibited higher activity than those with rigid backbone. the isolated pdtc had bimodal-mode molecular weight distribution. the molecular weights of each fraction increased linearly with the conversion, indicating that there might be two active species. this had been confirmed by analyses of oligomeric dtc living species and oligomer with nmr technique as the metal-alkoxide and the four-membered metallocyclic lactate. kinetic investigation displayed that the polymerization rate was the first order with the monomer concentration. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000265076100063 |
公开日期 | 2010-05-27 |
源URL | [http://202.98.16.49/handle/322003/12361] ![]() |
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 | Liu B,Cui DM. Polymerization of 2,2 '-Dimethyltrimethylene Carbonate by Lutetium Complexes Bearing Amino-Phosphine Ligands[J]. journal of applied polymer science,2009,112(5):3110-3118. |
APA | Liu B,&Cui DM.(2009).Polymerization of 2,2 '-Dimethyltrimethylene Carbonate by Lutetium Complexes Bearing Amino-Phosphine Ligands.journal of applied polymer science,112(5),3110-3118. |
MLA | Liu B,et al."Polymerization of 2,2 '-Dimethyltrimethylene Carbonate by Lutetium Complexes Bearing Amino-Phosphine Ligands".journal of applied polymer science 112.5(2009):3110-3118. |
入库方式: OAI收割
来源:长春应用化学研究所
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